| Consolidated Balance Sheets (Parentheticals) - $ / shares | Dec. 31, 2022 | Dec. 31, 2021 | |||
|---|---|---|---|---|---|
| Common stock, par value (in dollars per share) | $ 1 | $ 1 | |||
| Common stock, authorized (in shares) | 50,000,000 | 50,000,000 | |||
| Common stock, issued (in shares) | 23,371,822 | 23,971,347 | |||
| Common stock, outstanding (in shares) | 16,225,399 | 16,878,220 | |||
| Undesignated Par Value [Member] | |||||
| Preferred stock, no par value (in dollars per share) | $ 0 | $ 0 | [1] | ||
| Preferred stock, authorized (in shares) | 1,000,000 | 1,000,000 | [1] | ||
| Designated Par Value [Member] | |||||
| Preferred stock, authorized (in shares) | 25,000 | 25,000 | [1] | ||
| Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01 | [1] | ||
| Preferred stock, outstanding (in shares) | 0 | 0 | [1] | ||
| 
 | |||||
| Consolidated Statements of Income - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Interest income: | |||
| Interest and fees on loans | $ 104,570 | $ 102,832 | $ 110,447 | 
| Interest on securities -- taxable | 5,271 | 700 | 1,004 | 
| Interest on securities -- tax-exempt | 715 | 1,037 | 1,785 | 
| Interest on deposits in banks | 3,763 | 741 | 800 | 
| Total interest income | 114,319 | 105,310 | 114,036 | 
| Interest expense: | |||
| Interest on deposits | 1,654 | 2,835 | 5,460 | 
| Interest on short-term borrowings | 2 | 1 | 4 | 
| Total interest expense | 1,656 | 2,836 | 5,464 | 
| Net interest income | 112,663 | 102,474 | 108,572 | 
| Provision for (recovery of) credit/loan losses | 6,572 | (8,471) | 12,668 | 
| Net interest income after provision for loan losses | 106,091 | 110,945 | 95,904 | 
| Noninterest income: | |||
| Net gain on sale of securities | 0 | 0 | 385 | 
| Gain on divestitures | 1,658 | 0 | 0 | 
| Other operating income | 5,148 | 4,580 | 2,679 | 
| Total noninterest income | 37,182 | 34,301 | 29,833 | 
| Noninterest expense: | |||
| Salaries and employee benefits | 47,183 | 44,239 | 44,005 | 
| Occupancy expense | 4,818 | 4,913 | 5,043 | 
| Furniture and equipment expense | 6,001 | 5,627 | 5,558 | 
| Service fees | 7,606 | 6,324 | 5,665 | 
| Advertising and public relations | 2,409 | 2,076 | 1,951 | 
| Professional fees | 1,303 | 1,524 | 1,224 | 
| Amortization of intangibles | 1,446 | 1,446 | 1,450 | 
| FDIC premiums and assessments | 1,126 | 832 | 426 | 
| Merger expense | 596 | 0 | 1,893 | 
| Divestiture expense | 153 | 0 | 0 | 
| Other operating expense | 10,475 | 11,737 | 12,410 | 
| Total noninterest expense | 83,116 | 78,718 | 79,625 | 
| Income before income taxes | 60,157 | 66,528 | 46,112 | 
| Income tax expense | 13,495 | 15,360 | 10,186 | 
| Net income | $ 46,662 | $ 51,168 | $ 35,926 | 
| Earnings per common share | |||
| Basic (in dollars per share) | $ 2.82 | $ 2.95 | $ 2.02 | 
| Diluted (in dollars per share) | 2.82 | 2.94 | 2.02 | 
| Cash dividends per common share (in dollars per share) | $ 1.12 | $ 1.04 | $ 1.00 | 
| Weighted average shares outstanding | |||
| Basic (in shares) | 16,519,848 | 17,335,615 | 17,781,748 | 
| Diluted (in shares) | 16,562,257 | 17,402,936 | 17,815,380 | 
| Fiduciary and Trust [Member] | |||
| Noninterest income: | |||
| Noninterest income | $ 3,855 | $ 3,853 | $ 3,417 | 
| Deposit Account [Member] | |||
| Noninterest income: | |||
| Noninterest income | 14,213 | 13,446 | 13,019 | 
| Financial Service, Other [Member] | |||
| Noninterest income: | |||
| Noninterest income | $ 12,308 | $ 12,422 | $ 10,333 | 
| Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Net income | $ 46,662 | $ 51,168 | $ 35,926 | 
| Other comprehensive income, before tax | |||
| Change in net unrealized (losses) gains on securities without other-than-temporary impairment | (19,793) | (1,381) | 689 | 
| Reclassification adjustment for net (gain) loss recognized in net income | 0 | 0 | (385) | 
| Net unrealized gains on available-for-sale debt securities | (19,793) | (1,381) | 304 | 
| Employee benefit plans: | |||
| Net actuarial gain (loss) | 1,718 | 1,472 | (1,217) | 
| Reclassification adjustment for amortization of prior service cost and net actuarial loss recognized in net income | 135 | 386 | 386 | 
| Net unrealized gains (losses) on employee benefit plans | 1,853 | 1,858 | (831) | 
| Other comprehensive (loss) income, before tax | (17,940) | 477 | (527) | 
| Income tax benefit (expense) | 3,767 | (100) | 110 | 
| Other comprehensive (loss) income, net | (14,173) | 377 | (417) | 
| Total comprehensive income | $ 32,489 | $ 51,545 | $ 35,509 | 
| Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands | Cumulative Effect, Period of Adoption, Adjustment [Member]  Preferred Stock [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]  Common Stock Outstanding [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]  Additional Paid-in Capital [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]  Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]  AOCI Attributable to Parent [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Preferred Stock [Member] | Common Stock Outstanding [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Total | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance (in shares) at Dec. 31, 2019 | 0 | 18,376,991 | |||||||||||||
| Balance at Dec. 31, 2019 | $ 0 | $ 18,377 | $ 192,413 | $ 219,535 | $ (1,506) | $ 428,819 | |||||||||
| Net income | 0 | 0 | 0 | 35,926 | 0 | 35,926 | |||||||||
| Other comprehensive loss | 0 | 0 | 0 | 0 | (417) | (417) | |||||||||
| Common dividends declared | $ 0 | $ 0 | 0 | (17,876) | 0 | (17,876) | |||||||||
| Equity-based compensation expense (in shares) | 0 | 57,476 | |||||||||||||
| Equity-based compensation expense | $ 0 | $ 58 | 1,585 | 0 | 0 | $ 1,643 | |||||||||
| Issuance of stock to 401(k) plan, shares (in shares) | 0 | 22,693 | 22,693 | ||||||||||||
| Issuance of stock to 401(k) plan | $ 0 | $ 23 | 484 | 0 | 0 | $ 507 | |||||||||
| Repurchase of common shares (in shares) | (734,653) | (734,653) | |||||||||||||
| Repurchase of common shares | $ (735) | (21,137) | 0 | 0 | $ (21,872) | ||||||||||
| Balance (in shares) at Dec. 31, 2020 | 0 | 17,722,507 | |||||||||||||
| Balance at Dec. 31, 2020 | $ 0 | $ 0 | $ 0 | $ (5,870) | $ 0 | $ (5,870) | $ 0 | $ 17,723 | 173,345 | 237,585 | (1,923) | 426,730 | |||
| Net income | 0 | 0 | 0 | 51,168 | 0 | 51,168 | |||||||||
| Other comprehensive loss | 0 | 0 | 0 | 0 | 377 | 377 | |||||||||
| Common dividends declared | $ 0 | $ 0 | 0 | (18,059) | 0 | (18,059) | |||||||||
| Equity-based compensation expense (in shares) | 0 | 48,388 | |||||||||||||
| Equity-based compensation expense | $ 0 | $ 48 | 1,233 | 0 | 0 | $ 1,281 | |||||||||
| Issuance of stock to 401(k) plan, shares (in shares) | 0 | 16,716 | 16,716 | ||||||||||||
| Issuance of stock to 401(k) plan | $ 0 | $ 16 | 476 | 0 | 0 | $ 492 | |||||||||
| Repurchase of common shares (in shares) | 0 | (949,386) | (949,386) | ||||||||||||
| Repurchase of common shares | $ 0 | $ (949) | (27,933) | 0 | 0 | $ (28,882) | |||||||||
| Common stock options exercised, shares (in shares) | 0 | 39,995 | 39,995 | ||||||||||||
| Common stock options exercised | $ 0 | $ 40 | 498 | 0 | 0 | $ 538 | |||||||||
| Balance (in shares) at Dec. 31, 2021 | 0 | 16,878,220 | |||||||||||||
| Balance at Dec. 31, 2021 | $ 0 | $ 16,878 | 147,619 | 264,824 | (1,546) | 427,775 | [1] | ||||||||
| Net income | 0 | 0 | 0 | 46,662 | 0 | 46,662 | |||||||||
| Other comprehensive loss | 0 | 0 | 0 | 0 | (14,173) | (14,173) | |||||||||
| Common dividends declared | $ 0 | $ 0 | 0 | (18,515) | 0 | (18,515) | |||||||||
| Equity-based compensation expense (in shares) | 0 | 25,137 | |||||||||||||
| Equity-based compensation expense | $ 0 | $ 25 | 693 | 0 | 0 | $ 718 | |||||||||
| Issuance of stock to 401(k) plan, shares (in shares) | 0 | 20,584 | 20,584 | ||||||||||||
| Issuance of stock to 401(k) plan | $ 0 | $ 20 | 637 | 0 | 0 | $ 657 | |||||||||
| Repurchase of common shares (in shares) | 0 | (706,117) | (706,117) | ||||||||||||
| Repurchase of common shares | $ 0 | $ (706) | (20,605) | 0 | 0 | $ (21,311) | |||||||||
| Common stock options exercised, shares (in shares) | 0 | 7,575 | 7,575 | ||||||||||||
| Common stock options exercised | $ 0 | $ 8 | 164 | 0 | 0 | $ 172 | |||||||||
| Balance (in shares) at Dec. 31, 2022 | 0 | 16,225,399 | |||||||||||||
| Balance at Dec. 31, 2022 | $ 0 | $ 16,225 | $ 128,508 | $ 292,971 | $ (15,719) | $ 421,985 | |||||||||
| 
 | |||||||||||||||
| Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - $ / shares | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Common dividends declared, per share (in dollars per share) | $ 1.12 | $ 1.04 | $ 1.00 | 
| Issuance of stock to 401(k) plan, shares (in shares) | 20,584 | 16,716 | 22,693 | 
| Repurchase of common shares, shares (in shares) | 706,117 | 949,386 | 734,653 | 
| Repurchase of common shares, per share (in dollars per share) | $ 30.18 | $ 30.42 | $ 29.77 | 
| Common stock options exercised, shares (in shares) | 7,575 | 39,995 | |
| Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Operating activities | |||
| Net income | $ 46,662 | $ 51,168 | $ 35,926 | 
| Adjustments to reconcile net income to net cash provided by operating activities | |||
| Provision for (recovery of) credit/loan losses | 6,572 | (8,471) | 12,668 | 
| Depreciation and amortization of premises and equipment | 4,154 | 4,471 | 4,458 | 
| (Accretion)/amortization of discounts/premiums on investments, net | (261) | 454 | 1,468 | 
| Amortization of FDIC indemnification asset, net | 0 | 0 | 1,690 | 
| Amortization of intangible assets | 1,446 | 1,446 | 1,450 | 
| Accretion on acquired loans | (2,618) | (4,656) | (7,991) | 
| Gain on divestiture | (1,658) | 0 | 0 | 
| Equity-based compensation expense | 718 | 1,281 | 1,643 | 
| Issuance of common stock to 401(k) plan | 657 | 492 | 507 | 
| (Gain) loss on sale of premises and equipment, net | (772) | 499 | (59) | 
| Provision expense and loss on sale of other real estate owned | 453 | 231 | 319 | 
| Gain on sale of securities | 0 | 0 | (385) | 
| Writedowns of property, plant & equipment | 0 | 0 | 812 | 
| Decrease (increase) in other operating activities | 3,671 | 1,300 | (6,662) | 
| Net cash provided by operating activities | 59,024 | 48,215 | 45,844 | 
| Investing activities | |||
| Proceeds from sale of available for sale securities | 0 | 370 | 51,027 | 
| Proceeds from maturities, prepayments, and calls of securities available for sale | 25,748 | 27,256 | 44,676 | 
| Payments to acquire securities available for sale | (269,337) | (22,394) | (10,267) | 
| (Originations of) proceeds from repayments loans, net | (236,620) | 27,467 | (69,259) | 
| Proceeds from bank owned life insurance | 1,763 | 0 | 0 | 
| (Payments for) redemption of FHLB stock, net | (240) | 1,012 | (12) | 
| Cash transferred in divestiture, net | (59,039) | 0 | 0 | 
| Payments to the FDIC | 0 | 0 | (30) | 
| Proceeds from sale of premises and equipment | 1,542 | 2,616 | 2,861 | 
| Payments to acquire premises and equipment | (1,160) | (3,038) | (3,195) | 
| Proceeds from sale of other real estate owned | 564 | 2,061 | 1,997 | 
| Net cash (used in) provided by investing activities | (536,779) | 35,350 | 17,798 | 
| Financing activities | |||
| Increase in noninterest-bearing deposits, net | 47,769 | 69,988 | 144,927 | 
| (Decrease) increase in interest-bearing deposits, net | (37,291) | 113,156 | 71,408 | 
| Proceeds from (payments for) in securities sold under agreements to repurchase, net | 0 | 572 | (637) | 
| Repayments of FHLB and other borrowings, net | 338 | 0 | (40) | 
| Proceeds from stock options exercised | 172 | 538 | 0 | 
| Payments for repurchase of common stock | (21,311) | (28,882) | (21,872) | 
| Payments of common stock dividends | (18,515) | (18,059) | (17,876) | 
| Net cash (used in) provided by financing activities | (28,838) | 137,313 | 175,910 | 
| Net (decrease) increase in cash and cash equivalents | (506,593) | 220,878 | 239,552 | 
| Cash and cash equivalents at beginning of period | 677,439 | 456,561 | 217,009 | 
| Cash and cash equivalents at end of period | 170,846 | 677,439 | 456,561 | 
| Supplemental disclosure -- cash flow information | |||
| Cash paid for interest | 2,114 | 3,141 | 5,500 | 
| Cash paid for income taxes | 7,590 | 14,399 | 9,074 | 
| Supplemental transactions -- non-cash items | |||
| Transfer of loans to other real estate | 705 | 1,283 | 695 | 
| Loans originated to finance other real estate | 0 | 59 | 266 | 
| Change in accumulated other comprehensive income/(loss) | $ (14,173) | $ 377 | $ (417) | 
| Note 1 - Basis of Presentation and Significant Accounting Policies | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation and Significant Accounting Policies [Text Block] | Note 1. Basis of Presentation and Significant Accounting Policies 
 Basis of Presentation 
 First Community Bankshares, Inc. (the “Company”) is a financial holding company incorporated under the laws of the Commonwealth of Virginia. The Company’s principal executive office is located in Bluefield, Virginia. The Company provides banking products and services to individual and commercial customers through its wholly owned subsidiary First Community Bank (the “Bank”), a Virginia-chartered banking institution founded in 1874. The Bank offers wealth management and investment advice through its Trust Division and wholly owned subsidiary First Community Wealth Management (“FCWM”). Unless the context suggests otherwise, the terms “First Community,” “Company,” “we,” “our,” and “us” refer to First Community Bankshares, Inc. and its subsidiaries as a consolidated entity. 
 Principles of Consolidation 
 The Company’s accounting and reporting policies conform with U.S. generally accepted accounting principles (“GAAP”) and prevailing practices in the banking industry. The consolidated financial statements include all accounts of the Company and its wholly owned subsidiaries and eliminate all intercompany balances and transactions. The Company operates in business segment, Community Banking, which consists of all operations, including commercial and consumer banking, lending activities, and wealth management. 
 The Company maintains investments in variable interest entities (“VIEs”). VIEs are legal entities in which equity investors do not have sufficient equity at risk for the entity to independently finance its activities, or as a group, the holders of the equity investment at risk lack the power through voting or similar rights to direct the activities of the entity that most significantly impact its economic performance, or do not have the obligation to absorb the expected losses of the entity or the right to receive expected residual returns of the entity. Consolidation of a VIE is required if a reporting entity is the primary beneficiary of the VIE. The Company periodically reviews its VIEs and has determined that it is not the primary beneficiary of any VIE; therefore, the assets and liabilities of these entities are not consolidated into the financial statements. 
 
 Reclassification 
 Certain amounts reported in prior years have been reclassified to conform to the current year’s presentation. These reclassifications had no effect on the Company’s results of operations, financial position, or net cash flow. 
 Use of Estimates 
 Preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that require the most subjective or complex judgments relate to fair value measurements, the allowance for loan losses and goodwill and other intangible asset. For additional information, see “Critical Accounting Policies” in Part II, Item 7 of this report. 
 
 Summary of Significant Accounting Policies 
 Fair Value Measurements 
 Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability, in the principal or most advantageous market for the asset or liability, in an orderly transaction between market participants. Market participants are buyers and sellers in the principal market that are independent, knowledgeable, able to transact, and willing to transact. 
 The fair value hierarchy ranks the inputs used in measuring fair value as follows: 
 
 
 
 
 The Company uses fair value measurements to record adjustments to certain financial assets and liabilities on a recurring basis. The Company may be required to record certain assets at fair value on a nonrecurring basis in specific circumstances, such as evidence of impairment. Methodologies used to determine fair value might be highly subjective and judgmental in nature; therefore, valuations may not be precise. If the Company determines that a valuation technique change is necessary, the change is assumed to have occurred at the end of the respective reporting period. 
 
 Cash and Cash Equivalents 
 Cash and cash equivalents include cash and due from banks, federal funds sold, and interest-bearing balances on deposit with the Federal Home Loan Bank (“FHLB”), the Federal Reserve Bank (“FRB”), and correspondent banks that are available for immediate withdrawal. 
 Investment Securities 
 Management classifies debt securities as held-to-maturity or available-for-sale based on the intent and ability to hold the securities to maturity. Debt securities that the Company has the intent and ability to hold to maturity are classified as held-to-maturity securities and carried at amortized cost. Debt securities not classified as held to maturity are classified as available-for-sale securities and carried at estimated fair value. Available-for-sale securities consist of securities the Company intends to hold for indefinite periods of time including securities to be used as part of the Company’s asset/liability management strategy and securities that may be sold for a variety of reasons. Unrealized gains and losses on available-for-sale securities are included in accumulated other comprehensive income (“AOCI”), net of income taxes, in stockholders’ equity. Gains or losses on calls, maturities, or sales of investment securities are recorded based on the specific identification method and included in noninterest income. Premiums are amortized to first call date and discounts are accreted over the life of a security into interest income. 
 Management evaluates securities for impairment where there has been a decline in fair value below the amortized cost basis of a security to determine whether there is a credit loss associated with the decline in fair value on at least a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Credit losses are calculated individually, rather than collectively, using a discounted cash flow method, whereby Management compares the present value of expected cash flows with the amortized cost basis of the security. The credit loss component would be recognized through the provision for credit losses and the creation of an allowance for credit losses. Consideration is given to (1) the financial condition and near-term prospects of the issuer including looking at default and delinquency rates, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) our intent and ability to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that we will be required to sell the debt security prior to recovering its fair value, (5) the anticipated outlook for changes in the general level of interest rates, (6) credit ratings, (7) third party guarantees, and (8) collateral values. The Company evaluates impairment where there has been a decline in fair value below the amortized cost basis of a security to determine whether there is a credit loss associated with the decline in fair value. The nature of the collateral is considered along with potential future changes in collateral values, default rates, delinquency rates, third-party guarantees, credit ratings, interest rate changes since purchase, volatility of the security’s fair value and historical loss information for financial assets secured with similar collateral among other factors. Credit losses are calculated individually, rather than collectively, using a discounted cash flow method, whereby management compares the present value of expected cash flows with the amortized cost basis of the security. The credit loss component would be recognized through the provision for credit losses in the Statement of Income and establish an allowance for credit losses on the Balance Sheet. 
     The Company excludes the accrued interest receivable from the amortized cost basis in measuring expected credit losses on the investment securities.  Nor does the Company record an allowance for credit losses on accrued interest receivable.  As of   
     December 31, 2022, the accrued interest receivable for investment securities available for sale was $ 
    1.34  
    million. 
    
 Other Investments 
 As a condition of membership in the FHLB and the FRB, the Company is required to hold a minimum level of stock in the FHLB of Atlanta and the FRB of Richmond. These securities are carried at cost and periodically reviewed for impairment. The total investment in FHLB and FRB stock, which is included in other assets, was $10.02 million as of December 31, 2022, and $9.78 million as of December 31, 2021. 
 The Company owns certain long-term equity investments without readily determinable fair values, including certain tax credit limited partnerships and various limited liability companies that manage real estate investments, facilitate tax credits, and provide title insurance and other related financial services. These investments are accounted for at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment. The total carrying value in these investments, which is included other assets, totaled $3.78 million as of December 31, 2022, and $3.85 million as of December 31, 2021. 
 
 Business Combinations 
 The Company accounts for business combinations using the acquisition method of accounting as outlined in using Topic 805 of the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”). Under this method, all identifiable assets acquired, including purchased loans, and liabilities assumed are recorded at fair value. Any excess of the purchase price over the fair value of net assets acquired is recorded as goodwill. In instances where the price of the acquired business is less than the net assets acquired, a gain on the purchase is recorded. Fair values are assigned based on quoted prices for similar assets, if readily available, or appraisals by qualified independent parties for relevant asset and liability categories. Certain financial assets and liabilities are valued using discount models that apply current discount rates to streams of cash flow. Valuation methods require assumptions, which can result in alternate valuations, varying levels of goodwill or bargain purchase gains, or amortization expense or accretion income. Management must make estimates for the useful or economic lives of certain acquired assets and liabilities that are used to establish the amortization or accretion of some intangible assets and liabilities, such as core deposits. Fair values are subject to refinement for up to one year after the closing date of the acquisition as additional information about the closing date fair values becomes available. Acquisition and divestiture activities are included in the Company’s consolidated results of operations from the closing date of the transaction. Acquisition and divestiture related costs are recognized in noninterest expense as incurred. For additional information, see “Purchased Deteriorated Loans” and “Intangible Assets” below. 
 Loans Held for Investment 
 Loans classified as held for investment are originated with the intent to hold indefinitely, until maturity, or until pay-off. Loans held for investment are carried at the principal amount outstanding, net of unearned income and any necessary write-downs to reduce individual loans to net realizable value. Interest income on performing loans is recognized as interest income at the contractual rate of interest. Loan origination fees, including loan commitment and underwriting fees, are reduced by direct costs associated with loan processing, including salaries, legal review, and appraisal fees. Net deferred loan fees are deferred and amortized over the life of the related loan or commitment period. 
 Purchased Performing Loans. Purchased loans that are deemed to be performing at the acquisition date are accounted for using the contractual cash flow method of accounting, which results in the loans being recorded at fair value with a credit discount. The fair value discount or premium is accreted or amortized, as the case may be, as an adjustment to yield over the estimated contractual lives of the loans. 
 Purchased Credit Deteriorated (“PCD”) Loans. Purchased credit-deteriorated, otherwise referred to herein as PCD, assets are defined as acquired individual financial assets (or acquired groups of financial assets with similar risk characteristics) that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination, as determined by the Company’s assessment. The Company records acquired PCD loans by adding the expected credit losses (i.e. allowance for credit losses) to the purchase price of the financial assets rather than recording through the provision for credit losses in the income statement. The expected credit loss, as of the acquisition date, of a PCD loan is added to the allowance for credit losses. The non-credit discount or premium is the difference between the fair value and the amortized cost basis as of the acquisition date. Subsequent to the acquisition date, the change in the ACL on PCD loans is recognized through the provision for credit losses. The non-credit discount or premium is accreted or amortized, respectively, into interest income over the remaining life of the PCD loan on a level-yield basis. In accordance with the transition requirements within the standard, the Company’s acquired purchased credit impaired loans were treated as PCD loans. 
 Individually Evaluated Loans and Nonperforming Assets. The Company maintains an active and robust problem credit identification system through its ongoing credit review function. When a loan no longer shares similar risk characteristics with its segment, the asset is assessed to determine whether it should be included in another pool or should be individually evaluated. The Company currently maintains a net book balance threshold of $500,000 for individually-evaluated loans. Generally, individually-evaluated loans other than Troubled Debt Restructurings, otherwise referred to herein as “TDRs,” are on nonaccrual status. Based on the threshold above, consumer loans will generally remain in pools unless they meet the dollar threshold and foreclosure is probable. The expected credit losses on individually-evaluated loans will be estimated based on discounted cash flow analysis unless the loan meets the criteria for use of the fair value of collateral, either by virtue of an expected foreclosure or through meeting the definition of collateral-dependent. Financial assets that have been individually evaluated can be returned to a pool for purposes of estimating the expected credit loss insofar as their credit profile improves and that the repayment terms were not considered to be unique to the asset. The Company follows its nonaccrual policy by reversing contractual interest income in the income statement when the Company places a loan on nonaccrual status. Therefore, Management excludes the accrued interest receivable balance from the amortized cost basis in measuring expected credit losses on the portfolio and does not record an allowance for credit losses on accrued interest receivable. The accrual of interest, which is based on the daily amount of principal outstanding, on individually evaluated loans is generally continued unless the loan becomes delinquent 90 days or more. 
 Loans are considered past due when either principal or interest payments become contractually delinquent by 30 days or more. The Company’s policy is to discontinue the accrual of interest, if warranted, on loans based on the payment status, evaluation of the related collateral, and the financial strength of the borrower. Loans that are 90 days or more past due are placed on nonaccrual status. Management may elect to continue the accrual of interest when the loan is well secured and in process of collection. When interest accruals are discontinued, interest accrued and not collected in the current year is reversed from income, and interest accrued and not collected from prior years is charged to the allowance for loan losses. Nonaccrual loans may be returned to accrual status when all principal and interest amounts contractually due, including past due payments, are brought current; the ability of the borrower to repay the obligation is reasonably assured; and there is generally a period of at least six months of repayment performance by the borrower in accordance with the contractual terms. 
 Seriously delinquent loans are evaluated for loss mitigation options. Closed-end retail loans are generally charged off against the allowance for credit losses when the loans become 120 days past due. Open-end retail loans and residential real estate secured loans are generally charged off when the loans become 180 days past due. Unsecured loans are generally charged off when the loans become 90 days past due. All other loans are charged off against the allowance for loan losses after collection attempts have been exhausted, which generally is within 120 days. Recoveries of loans previously charged off are credited to the allowance for loan losses in the period received. 
 Loans are considered troubled debt restructurings when the Company grants concessions, for legal or economic reasons, to borrowers experiencing financial difficulty that would not otherwise be considered. The Company generally makes concessions in interest rates, loan terms, and/or amortization terms. All TDRs $500 thousand or greater are evaluated for a specific reserve based on either the collateral or net present value method, whichever is most applicable. TDRs under $500 thousand are subject to the reserve calculation for classified loans based primarily on the historical loss rate. At the date of modification, nonaccrual loans are classified as nonaccrual TDRs. TDRs classified as nonperforming at the date of modification are returned to performing status after six months of satisfactory payment performance; however, these loans remain identified as individually evaluated until full payment or other satisfaction of the obligation occurs. 
 Other real estate owned (“OREO”) acquired through foreclosure, or other settlement, is carried at the lower of cost or fair value less estimated selling costs. The fair value is generally based on current third-party appraisals. When a property is transferred into OREO, any excess of the loan balance over the net realizable fair value is charged against the allowance for loan losses. Operating expenses, gains, and losses on the sale of OREO are included in other noninterest expense in the Company’s consolidated statements of income after any fair value write-downs are recorded as valuation adjustments. 
 
 Allowance for Credit Losses (ACL) 
 The Company reviews our allowance for credit losses quarterly to determine if it is sufficient to absorb expected loan losses in the portfolio. This determination requires management to make significant estimates and assumptions. While the Company uses its best judgment and available information, the ultimate adequacy of the allowance is dependent upon a variety of factors beyond our control, including the performance of our loan portfolio, the economy, changes in interest rates, and the view of regulatory authorities towards loan classifications. These uncertainties may result in material changes to the allowance for credit losses in the near term; however, the amount of the change cannot reasonably be estimated. Prior to January 1, 2021, we followed the incurred loss accounting method for reserving for loan losses which required us to estimate losses that had been incurred as of the balance sheet date. For additional information, see this note, Note 1, “Basis of Presentation,” to the Consolidated Financial Statements in "Recent Accounting Standards". 
 The ACL is an estimate of losses that will result from the inability of borrowers to make required loan payments. The Company established the incremental increase in the ACL at the adoption through retained earnings and subsequent adjustments will be made through a provision for credit losses charged to earnings. Loans charged off are recorded against the ACL and subsequent recoveries increase the ACL when they are recognized. 
 A systematic methodology is used to determine ACL for loans held for investment and certain off-balance sheet credit exposures. The ACL is a valuation account that is deducted from the amortized cost basis to present the net amount expected to be collected on the loan portfolio. The Company considers the effects of past events, current conditions, and reasonable and supportable forecasts on the collectability of the loan portfolio. The Company’s estimate of its ACL involves a high degree of judgement and reflects management’s best estimate within the range of expected credit losses. The Company recognizes in net income the amount needed to adjust the ACL for management’s current estimate of expected credit losses. The Company’s ACL is calculated using collectively evaluated and individually evaluated loans. 
 The Company collectively evaluates loans that share similar risk characteristics. In general, loans are segmented by loan purpose. The Company collectively evaluates loans within the following consumer and commercial segments: Loans secured by 1-4 Family Properties, Home Equity Lines of Credit (“HELOC”), Owner Occupied Construction Loans, Consumer Loans, Commercial and Industrial, Multi-family, Non-farm/Non-residential Property, Commercial Construction/A&D/other Land Loans, Agricultural Loans, Credit Card Loans, Loans Secured by Farmland, and Other Consumer Loans (Overdrafts). 
 Risk characteristics of residential real estate loans which include loans secured by Single family properties, HELOC, and Owner occupied construction loans are dependent upon individual borrowers who are affected by changes in general economic conditions, real estate valuations, and the demand for housing. Commercial and Industrial, Multi-family residential, Non-farm/non-residential, Agricultural, and Loans secured by Farmland are similar in that they are generally dependent upon the borrower's internal cash flow from operations to service the debt and changes in general economic conditions. Commercial construction, Development, and other land loans, Consumer, and Other consumer loans (open pool) are similar in that they are dependent on changes in general economic conditions. 
 For collectively evaluated loans, the Company uses a combination of discounted cash flow and remaining life to estimate expected credit losses. During 2022, the Company changed third party model providers which necessitated a change from remaining life to open pool for the portfolios noted above. The change in method was not quantitatively significant. In addition to its own loss experience, management also includes peer bank historical loss experience in its assessment of expected credit losses to determine the ACL. The Company utilized call report data to measure its and its peers' historical credit losses experience with similar risk characteristics within the segments over an economic cycle. The Company reviewed the historical loss information to appropriately adjust for differences in current asset specific risk characteristics. Also considered were further adjustments to historical loss information for current conditions and reasonable and supportable forecasts that differ from the conditions that existed for the period over which historical information was evaluated. For the majority of the segments of collectively evaluated loans, the Company incorporated at least one macroeconomic driver using a statistical regression modeling methodology. 
 The Company considers forward-looking information in estimated expected credit losses. The Company subscribes to a third-party service which provides summary detail of dozens of economic forecasts. Using that information and other publicly available economic forecasts, management determines the economic variables to use for the one-year reasonable and supportable forecast period. Management has determined that the forecast period is consistent with how the Company has historically forecasted for its profitability planning and capital management. Management has evaluated the appropriateness of the reasonable and supportable forecast for the current period along with the inputs used in the estimation of expected credit losses. For the contractual term that extends beyond the reasonable and supportable forecast period, the Company reverts to historical loss information over eight quarters using a straight-line approach. Management may apply different reversion techniques depending on the economic environment for the financial asset portfolio and as of the current period has utilized a linear reversion technique. 
 Included in its systematic methodology to determine its ACL for loans held for investment and certain off-balance sheet credit exposures, The Company considers the need to qualitatively adjust expected credit losses for information not already captured in the loss estimation process. These qualitative adjustments either increase or decrease the quantitative model estimation. Each period the Company considers qualitative factors that are relevant within the qualitative framework that includes the following: 1) changes in lending policies and procedures, 2) changes in economic conditions, 3) changes in portfolio nature and volume, 4) changes in management, 5) changes in past due loans, 6) changes in the quality of the Company’s credit review system, 7) changes in the value of underlying collateral, 8) the effect of concentrations of credit, and 9) the effect of other external factors. 
 When a loan no longer shares similar risk characteristics with its segment, the asset is assessed to determine whether it should be included in another pool or should be individually evaluated. The Company currently maintains a net book balance threshold of $500,000 for individually-evaluated loans. Generally, individually-evaluated loans other than TDRs are on nonaccrual status. Based on the threshold above, consumer loans will generally remain in pools unless they meet the dollar threshold and foreclosure is probable. The expected credit losses on individually-evaluated loans will be estimated based on discounted cash flow analysis unless the loan meets the criteria for use of the fair value of collateral, either by virtue of an expected foreclosure or through meeting the definition of collateral-dependent. Financial assets that have been individually evaluated can be returned to a pool for purposes of estimating the expected credit loss insofar as their credit profile improves and that the repayment terms were not considered to be unique to the asset. 
 The Company measures expected credit losses over the contractual term of the loans. When determining the contractual term, the Company considers expected prepayments but is precluded from considering expected extensions, renewals, or modifications, unless the Company reasonably expects it will execute a TDR with a borrower. In the event of a reasonably-expected TDR, the Company factors the reasonably-expected TDR into the current expected credit losses estimate. The effects of a TDR are recorded when an individual asset is specifically identified as a reasonably-expected TDR. For consumer loans, the point at which a TDR is reasonably expected is when the Company approves the borrower’s application for a modification (i.e. the borrower qualifies for the TDR) or when the Credit Administration department approves loan concessions on substandard loans. For commercial loans, the point at which a TDR is reasonably expected is when the Company approves the loan for modification or when the Credit Administration department approves loan concessions on substandard loans. The Company uses a discounted cash flow methodology to calculate the effect of the concession provided to the borrower in TDR within the ACL. 
 The Company has a variety of assets that have a component that qualifies as an off-balance sheet exposure. These primarily include undrawn portions of revolving lines of credit and standby letters of credit. The expected losses associated with these exposures within the unfunded portion of the loans will be recorded as a liability on the balance sheet with an offsetting income statement expense. The Company has determined that a majority of the Company’s off-balance-sheet credit exposures are not unconditionally cancellable. As of December 31, 2022, the liability recorded for expected credit losses on unfunded commitments in Other Liabilities was $1.20 million. The estimates are determined based on the likelihood of funding during the contractual term and an estimate of credit losses subsequent to funding. Estimated credit losses on subsequently funded balances are based on the same assumptions as used to estimate credit losses on existing funded loans. The current adjustment to the ACL for unfunded commitments would be recognized through other operating expense in the Statement of Income. For additional information, see Note 6, “Allowance for Loan Losses,” to the Consolidated Financial Statements in Item 8 of this report. 
 
 Premises and Equipment 
 Premises, equipment, and leases are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the respective assets. Useful lives range from 5 to 10 years for furniture, fixtures, and equipment; 3 to 5 years for computer software, hardware, and data handling equipment; and 7 to 40 years for buildings and building improvements. Land improvements are amortized over a period of 20 years and leasehold improvements are amortized over the lesser of the term of the respective leases plus the first optional renewal period, when renewal is reasonably assured, or the estimated useful lives of the improvements. The Company leases various properties within its branch network. Leases generally have initial terms of up to 10 years and most contain options to renew with increases in rent. All leases are accounted for as operating leases. Maintenance and repairs are charged to current operations while improvements that extend the economic useful life of the underlying asset are capitalized. Disposition gains and losses are reflected in current operations. 
 Intangible Assets 
 Intangible assets consist of goodwill, core deposit intangible assets, and other identifiable intangible assets that result from business combinations. Goodwill represents the excess of the purchase price over the fair value of net assets acquired that is allocated to the appropriate reporting unit when acquired. Core deposit intangible assets represent the future earnings potential of acquired deposit relationships that are amortized over their estimated remaining useful lives. Other identifiable intangible assets primarily represent the rights arising from contractual arrangements that are amortized using the straight-line method. 
 An interim analysis of Goodwill is performed quarterly, and goodwill is tested for impairment annually, on October 31st, or more frequently if events or circumstances indicate there may be impairment. We have reporting unit, Community Banking. If we elect to perform a qualitative assessment, we evaluate factors such as macroeconomic conditions, industry and market considerations, overall financial performance, changes in stock price, and progress towards stated objectives in determining if it is more likely than not that the fair value of our reporting unit is less than its carrying amount. If we conclude that it is more likely than not that the fair value of our reporting unit is less than its carrying amount, a quantitative test is performed; otherwise, no further testing is required. The quantitative test consists of comparing the fair value of our reporting unit to its carrying amount, including goodwill. If the fair value of our reporting unit is greater than its book value, no goodwill impairment exists. If the carrying amount of our reporting unit is greater than its calculated fair value, a goodwill impairment charge is recognized for the difference. 
 Management has concluded that there was goodwill impairment for 2022. 
 Securities Sold Under Agreements to Repurchase 
 Securities sold under agreements to repurchase are generally accounted for as collateralized financing transactions and recognized as short-term borrowings in the Company’s consolidated balance sheets. Securities, generally U.S. government and federal agency securities, pledged as collateral under these arrangements can be sold or repledged only if replaced by the secured party. The fair value of the collateral provided to a third party is continually monitored and additional collateral is provided as appropriate. 
 Derivative Instruments 
 The Company primarily uses derivative instruments to protect against the risk of adverse price or interest rate movements on the value of certain assets and liabilities and on future cash flows. Derivative instruments represent contracts between parties that usually require little or no initial net investment and result in one party delivering cash or another asset to the other party based on a notional amount and an underlying asset as specified in the contract such as interest rates, equity security prices, currencies, commodity prices, or credit spreads. These derivative instruments may consist of interest rate swaps, floors, caps, collars, futures, forward contracts, and written and purchased options. Derivative contracts often involve future commitments to exchange interest payment streams or currencies based on a notional or contractual amount, such as interest rate swaps or currency forwards, or to purchase or sell other financial instruments at specified terms on a specified date, such as options to buy or sell securities or currencies. Derivative instruments are subject to counterparty credit risk due to the possibility that the Company will incur a loss because a counterparty, which may be a bank, a broker-dealer or a customer, fails to meet its contractual obligations. This risk is measured as the expected positive replacement value of contracts. Derivative contracts may be executed only with exchanges or counterparties approved by the Company’s Asset/Liability Management Committee. 
 If certain conditions are met, a derivative may be designated as a hedge related to fair value, cash flow, or foreign exposure risk. The recognition of changes in the fair value of a derivative instrument varies depending on the intended use of the derivative and the resulting designation. The Company accounts for hedges of customer loans as fair value hedges. The change in fair value of the hedging derivative and the change in fair value of the hedged exposure are recorded in earnings. Any hedge ineffectiveness is also reflected in current earnings. Changes in the fair value of derivatives not designated as hedging instruments are recognized as a gain or loss in earnings. The Company formally documents any relationships between hedging instruments and hedged items and the risk management objective and strategy for undertaking each hedged transaction. All derivative instruments are reported at fair value in the consolidated balance sheets. 
 Equity-Based Compensation 
 The cost of employee services received in exchange for equity instruments, including stock options and restricted stock awards, is generally measured at fair value on the grant date. The Black-Scholes-Merton valuation model is used to estimate the fair value of stock options at the grant date while the fair value of restricted stock awards is based on the market price of the Company’s common stock on the grant date. The Black-Scholes-Merton model incorporates the following assumptions: the expected volatility is based on the weekly historical volatility of the Company’s common stock price over the expected term of the option; the expected term is generally calculated using the shortcut method; the risk-free interest rate is based on the U.S. Department of the Treasury’s (“Treasury”) yield curve on the grant date with a term comparable to the grant; and the dividend yield is based on the Company’s dividend yield using the most recent dividend rate paid per share and trading price of the Company’s common stock. Compensation cost is recognized over the required service period, generally defined as the vesting period for stock option awards and as the restriction period for restricted stock awards. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. 
 
 Revenue Recognition 
 Wealth management. Wealth management income represents monthly fees due from wealth management customers in consideration for managing and administrating the customers' assets. Wealth management and trust services include custody of assets, investment management, escrow services, fees for trust services and similar fiduciary activities. Revenue is recognized when the performance obligation is completed each month, which is generally the time that payment is received. Income also includes fees received from a third party broker-dealer as part of a revenue-sharing agreement for fees earned from customers that are referred to the third party. These fees are paid to the Company by the third party on a quarterly basis and recognized ratably throughout the quarter as the performance obligation is satisfied. 
 Service charges on deposits and other service charges and fees. 
 Service charges on deposits and other service charges and fees represent general service fees for account maintenance and activity and transaction-based fees that consist of transaction-based revenue, time-based revenue (service period), item-based revenue, or some other individual attribute-based revenue. Revenue is recognized when the performance obligation is completed, which is generally monthly for account maintenance services or when a transaction has been completed. Payment for such performance obligations is generally received at the time the performance obligations are satisfied. Other service charges and fees include interchange income from debit and credit card transaction fees. 
 
 
 Advertising Expenses 
 Advertising costs are generally expensed as incurred. The Company may establish accruals for incurred advertising expenses in the course of a fiscal year. 
 Income Taxes 
 Income tax expense is comprised of the current and deferred tax consequences of events and transactions already recognized. The Company includes interest and penalties related to income tax liabilities in income tax expense. The effective tax rate, income tax expense as a percent of pre-tax income, may vary significantly from statutory rates due to tax credits and permanent differences. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the tax bases of assets and liabilities and their carrying amounts for financial reporting purposes. Deferred tax assets and liabilities are adjusted through the provision for income taxes as changes in tax laws or rates are enacted. 
 Per Share Results 
 Basic earnings per common share is calculated by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of potential common stock that could be issued by the Company. Under the treasury stock method of accounting, potential common stock may be issued for stock options, non-vested restricted stock awards, performance based stock awards, and convertible preferred stock. Diluted earnings per common share is calculated by dividing net income by the weighted average number of common shares outstanding for the period plus the number of dilutive potential common shares. The calculation of diluted earnings per common share excludes potential common shares that have an exercise price greater than the average market value of the Company’s common stock because the effect would be antidilutive. 
 Risks and Uncertainties 
 Recent COVID-19 Virus Developments – 
 During the last three years, government reaction to the novel coronavirus (“COVID-19”) pandemic significantly disrupted local, national, and global economies and adversely impacted a broad range of industries, including banking and other financial services. As COVID-19 events unfolded, the Company implemented various plans, strategies and protocols to protect its employees, maintain services for customers, assure the functional continuity of its operating systems, controls and processes, and mitigate financial risks posed by changing market conditions. 
 While direct impacts of COVID-19 appear to be declining and conditions have improved as of December 31, 2022, if there is a resurgence in the virus, the Company could experience adverse effects on its business, financial condition, results of operations and cash flows. While it is not possible to know the full extent that the impact of COVID-19, and any potential resulting measures to curtail its spread, will have on the Company's future operations, the Company's management believes its financial position, including high levels of capital and liquidity, will allow it to successfully endure the negative economic impacts of the pandemic. 
 Recent Accounting Standards 
 Standards Adopted 
 In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This ASU requires earlier recording of credit losses on loans and other financial assets held by financial institutions and other organizations. This ASU also requires an organization to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. It further requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, the ASU amends the accounting for credit losses in investments in debt securities and purchased financial assets with credit deterioration. The Company adopted the new standard as of January 1, 2021. The standard was applied using the modified retrospective method as a cumulative-effect adjustment to retained earnings as of January 1, 2021. Under this method, comparative periods will not be required to be restated for financial statements related to Topic 326. Comparative prior period disclosures will be presented using the guidance for the allowance for loan losses. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and the reasons for the change, which is solely a result of the adoption of the required standard. This standard did not have a material impact on our investment securities portfolio at implementation. Related to the implementation of the standard, the Company recorded an additional ACL for loans of $13.11 million, deferred tax assets of $1.81 million, and additional reserve for unfunded commitments of $509 thousand and an adjustment to retained earnings, net of tax, of $5.87 million. See the table below for the impact of ASU 2016-13 on the Company’s consolidated balance sheet. 
 
 
 
 
 
 Standards Not Yet Adopted 
 In March 2022, the Financial Accounting Standards Board issuedASU 2022-02, Financial Instruments-Credit Losses (Topic 326), Troubled Debt Restructurings and Vintage Disclosures. This new accounting topic provides accounting guidance for troubled debt restructuring ("TDR"), and write-offs, effective January 1, 2023, with early adoption permitted. The amendments eliminate TDR accounting guidance for issuers that have adopted ASU 2016-13, create a single loan modification accounting model, and clarify disclosure requirements for loan modifications and write-offs. We are currently reviewing the impact of the updated guidance on our Consolidated Financial Statements, but do no anticipate a material impact. The Company will adopt the standard, effective January 1, 2023. 
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| Note 2 - Acquisitions and Divestitures | 12 Months Ended | 
|---|---|
| Dec. 31, 2022 | |
| Notes to Financial Statements | |
| Business Combination Disclosure [Text Block] | Note 2. Acquisitions and Divestitures 
 On September 16, 2022, the Company completed the sale of its Emporia, Virginia branch to Benchmark Community Bank (the "Emporia Branch Sale"). The sale included the branch real estate, certain personal property, and all deposits associated with the branch. There were no loans included in the transaction. Benchmark paid a deposit premium of two percent for certain deposits. In addition, Benchmark paid $1.50 million for branch real estate and certain personal property. Total deposits acquired by Benchmark totaled $61.05 million. The deposits were composed of $18.38 million in demand, $28.46 million in interest-bearing demand, $11.52 million in savings, and $2.69 million in time deposits. The Company recognized a gain of $1.66 million from the Emporia Branch Sale. 
 On November 18, 2022, the Company and NC-based Surrey Bancorp (“Surrey”), parent company of Surrey Bank & Trust, jointly announced their entry into an agreement and plan of merger pursuant to which First Community will acquire Surrey and its wholly owned bank subsidiary, Surrey Bank & Trust. Upon completion of the transaction which is expected to close in 2023, the Company is expected to have total consolidated assets in excess of $3.6 billion with branch locations in four states. 
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| Note 3 - Debt Securities | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | Note 3. Debt Securities 
 The following tables present the amortized cost and fair value of available-for-sale debt securities, including gross unrealized gains and losses, as of the dates indicated: 
 
 
 
 
 The following table presents the amortized cost and fair value of available-for-sale debt securities, by contractual maturity, as of December 31, 2022. Actual maturities could differ from contractual maturities because issuers may have the right to call or prepay obligations with or without penalties. 
 
 
 
 The following tables present the fair values and unrealized losses for available-for-sale debt securities in a continuous unrealized loss position for less than 12 months and for 12 months or longer as of the dates indicated: 
 
 
 
 
 There were 113 individual debt securities in an unrealized loss position as of December 31, 2022, and their combined depreciation in value represented 6.59% of the debt securities portfolio. There were 23 individual debt securities in an unrealized loss position as of December 31, 2021, and their combined depreciation in value represented 0.91 % of the debt securities portfolio. 
 There were no sales of available for sale debt securities in 2022 or in 2021. In 2020, gross realized gains and losses from the sale of available for sale debt securities were $419 thousand and $34 thousand, respectively. The carrying amount of securities pledged for various purposes totaled $22.43 million as of December 31, 2022, and $22.15 million as of December 31, 2021. 
 In determining whether or not a security is impaired, we consider the severity of the loss as well as our intent to hold the securities to maturity or the recovery of the cost basis. 
 U. S. Agency securities 
 The Company has one U.S. Agency security as of December 31, 2022, with an amortized cost of $1.5 million. The security is issued by the Federal Home Loan Bank. The security is guaranteed of full and timely payments by the issuing agency. Based on management's analysis and judgement, there was no credit loss attributable to the U.S. Agency security at December 31, 2022. 
 U.S. Treasury securities 
 U.S. Treasury securities are backed by the full faith and credit of the United States government. At December 31, 2022, the total amortized cost of available for sale U. S. Treasury securities was $161.62 million. Based on management's analysis and judgement, there were no credit losses attributable to U.S. Treasury securities at December 31, 2022. 
 Municipal securities 
 Municipal securities are securities issued by various municipalities in the United States. At December 31, 2022, the total amortized cost of available for sale Municipal securities was $23.48 million. The majority of the portfolio was rated AA or higher, with no securities rated below investment grade at year-end. Based on management's analysis and judgement, there were no credit losses attributable to Municipal securities at December 31, 2022. 
 Corporate Notes 
 Corporate notes are debt obligations issued by public or private corporations. As of December 31, 2022, the total amortized cost of available for sale Corporate notes was $37.05 million. The majority of the portfolio was rated AA or higher, with no securities rated below investment grade at year-end. Based on management's analysis and judgement, there were no credit losses attributable to Corporate note securities at December 31, 2022. 
 Mortgage-backed Agency securities 
 Mortgage-backed Agency securities within the Company's portfolio are issued by Ginnie Mae, Fannie Mae, and Freddie Mac. As of December 31, 2022, the total amortized cost of available for sale Mortgage-backed Agency securities was $96.48 million. Each agency provides a guarantee of full and timely payments of principal and interest by the issuing agency. Based on management's analysis and judgement, there were no credit losses attributable to Mortgage-backed Agency securities at December 31, 2022. 
 
 
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| Note 4 - Loans | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Loans, Notes, Trade and Other Receivables Disclosure [Text Block] | Note 4. Loans 
 The Company groups loans into three segments (commercial loans, consumer real estate loans, and consumer and other loans) with each segment divided into various classes. Customer overdrafts reclassified as loans totaled $1.80 million as of December 31, 2022, and $1.65 million as of December 31, 2021. Deferred loan fees were $8.81 million as of December 31, 2022, and $5.06 million as of December 31, 2021. For information about off-balance sheet financing, see Note 19, “Litigation, Commitments, and Contingencies,” to the Consolidated Financial Statements of this report. 
 In accordance with the adoption of ASU 2016-13, the table below reflects the loan portfolio at the amortized cost basis for the periods indicated, to include net deferred loan fees of $8.81 million as of December 31, 2022, and $5.06 million as of December 31, 2021. Additionally, included is, the unamortized discount total related to loans acquired of $3.80 million as of December 31, 2022, and $5.41 million as of December 31, 2021. Accrued interest receivable (AIR) of $7.94 million as of December 31, 2022, and $7.54 million as of December 31, 2021 , is accounted for separately and reported in Interest Receivable on the Consolidated Balance Sheet. 
 The following table presents loans, net of unearned income by loan class, as of the dates indicated: 
 
 
 The Company began participating as a Small Business Administration (“SBA”) Paycheck Protection Program (“PPP”) lender during the second quarter of 2020. At December 31, 2022, there was no remaining balance of PPP loans, compared to $20.64 million at December 31, 2021 which were included in commercial and industrial loan balances. There were no remaining net deferred loan origination fees related to the PPP loans, net of deferred loan origination costs at December 31, 2022. At December 31, 2021 , the amount of net deferred loan origination fees related to PPP loans was $733 thousand. During 2022, the Company recorded amortization of net deferred loan origination fees of $733 thousand on PPP loans, compared with $2.74 million for 2021. 
 
 
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| Note 5 - Credit Quality | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financing Receivables [Text Block] | Note 5. Credit Quality 
 The Company uses a risk grading matrix to assign a risk grade to each loan in its portfolio. Loan risk ratings may be upgraded or downgraded to reflect current information identified during the loan review process. The general characteristics of each risk grade are as follows: 
 
 
 
 
 
 
 The following tables present the recorded investment of the loan portfolio, by loan class and credit quality, as of the dates indicated. 
 
 
 
 
 
 
 The following tables present the amortized cost basis of the loan portfolio, by year of origination, loan class, and credit quality, as of the dates indicated: 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 The Company generally places a loan on nonaccrual status when it is 90 days or more past due. The following table presents nonaccrual loans, by loan class, as of the dates indicated: 
 
 
 During 2022, $5 thousand in nonaccrual loan interest was recognized compared to $72 thousand in 2021. 
 The following tables presents the aging of past due loans, by loan class, as of the date indicated. Nonaccrual loans 30 days or more past due are included in the applicable delinquency category. 
 
 
 
 
 
 ASC 326 prescribes that when an entity determines foreclosure is probable, the expected credit loss is required to be measured based on the fair value of the collateral. As a practical expedient, an entity may use the fair value as of the reporting date when recording the net carrying amount of the asset. For the collateral dependent asset ("CDA") a credit loss expense is recorded for loan amounts in excess of fair value of the collateral. The table below summarizes collateral dependent loans, where foreclosure is possible, by type of collateral, and the extent to which they are collateralized during the periods. 
 
 
 
 
 The Company may make concessions in interest rates, loan terms and/or amortization terms when restructuring loans for borrowers experiencing financial difficulty. Certain TDRs are classified as nonperforming at the time of restructuring and are returned to performing status after months of satisfactory payment performance; however, these loans remain identified as individually evaluated until full payment or other satisfaction of the obligation occurs. 
 The following table presents loans modified as TDRs, by loan class and accrual status, as of the dates indicated: 
 
 
 
 
 The following table presents interest income recognized on TDRs for the periods indicated: 
 
 
 The following table presents loans modified as TDRs, by type of concession made and loan class, that were restructured during the periods indicated. 
 
 
 
 
 There were payment defaults for loans restructured within the previous 12 months for December 31, 2022 or 2021. 
 
 The following table provides information about OREO, which consists of properties acquired through foreclosure, as of the dates indicated: 
 
 
 
 
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| Note 6 - Allowance for Credit Losses | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Allowance for Credit Losses [Text Block] | Note 6. Allowance for Credit Losses 
 The following tables present the changes in the allowance for credit/loan losses, by loan segment, during the periods indicated. 
 
 
 
 
 
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| Note 7 - Premises, Equipment, and Leases | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment Disclosure [Text Block] | Note 7. Premises, Equipment, and Leases 
 Premises and Equipment 
 The following table presents the components of premises and equipment as of the dates indicated: 
 
 
 There were no impairment charges related to certain long-term investments in land and buildings in 2022. Impairment charges of $781 thousand were recognized in 2021, and $812 thousand in 2020. Depreciation and amortization expense for premises and equipment was $4.15 million in 2022, $4.47 million in 2021, and $4.46 million in 2020. 
 Leases 
 Effective January 1, 2019, the Company adopted ASU 2016-02, “Leases (Topic 842)”; the standard was adopted prospectively. The Company currently has two operating leases that are recorded as a right of use (“ROU”) asset and operating lease liability. The right of use asset is recorded in other assets on the consolidated balance sheet, while the lease liability is recorded in other liabilities. The ROU asset represents the right to use an underlying asset during the lease term and the lease liability represents the obligation to make lease payments arising from the lease. The current ROU asset and lease liability were recognized at the adoption date of January 1, 2019, based on the present value of the remaining lease payments using a discount rate that represented our incremental borrowing rate at the time of adoption. The lease expense which is comprised of the amortization of the ROU asset and the implicit interest accreted on the lease liability, is recognized on a straight-line basis over the lease term, and is recorded in occupancy expense in the consolidated statements of income. 
 The Company’s current operating leases relate to one existing bank branch and one operating lease acquired in a prior bank acquisition. The acquired operating lease was for vacant land and will terminate in July of 2029. The Company's ROU asset was $648 thousand as of December 31, 2022 compared to $741 thousand as of December 31, 2021. The operating lease liability as of December 31, 2022 was $670 thousand compared to $770 thousand as of December 31, 2021. The Company’s total operating leases have remaining terms of 2 years to 6.5 years compared with 4 months to 7.5 years as of December 31, 2021. The December 31, 2022 weighted average discount was 3.28%, compared to from December 31, 2021. 
 Future minimum lease payments as of the dates indicated are as follows: 
 
 
 Lease expense which is included in occupancy expense on the Consolidated Statement of Income was $175 thousand in 2022, $182 thousand in 2021, and $180 thousand in 2020. The Company maintained no subleases as of December 31, 2022. 
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| Note 8 - Goodwill and Other Intangible Assets | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Goodwill and Intangible Assets Disclosure [Text Block] | Note 8. Goodwill and Other Intangible Assets 
 Goodwill 
 The Company has reporting unit for goodwill impairment testing purposes, Community Banking. The Company performed its annual assessment of goodwill as of October 31, 2022, and concluded that the carrying value of goodwill was not impaired. No events have occurred after the analysis to indicate potential impairment. 
 As of December 31, 2022, the Company's goodwill totaled $129.57 million and was the same for both 2021 and 2020. 
 Other Intangible Assets 
 As of December 31, 2022, the remaining lives of core deposit intangibles ranged from 2.50 years to 7 years with a weighted average remaining life of 5.87 years. The following table presents the components of other intangible assets as of the dates indicated: 
 
 
 Amortization expense for other intangible assets was $1.45 million in 2022, 2021, and in 2020. 
 The following schedule presents the estimated amortization expense for intangible assets, by year, as of December 31, 2022: 
 
 
 
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| Deposit Liabilities Disclosures [Text Block] | Note 9. Deposits 
 The following table presents the components of deposits as of the dates indicated: 
 
 
 The following schedule presents the contractual maturities of time deposits, by year, as of December 31, 2022: 
 
 
 Time deposits of $250 thousand or more totaled $15.21 million as of December 31, 2022, and $27.14 million as of December 31, 2021. The following schedule presents the contractual maturities of time deposits of $250 thousand or more as of December 31, 2022: 
 
 
 
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| Debt Disclosure [Text Block] | Note 10. Borrowings 
 The following table presents the components of borrowings as of the dates indicated: 
 
 
 Repurchase agreements are secured by certain securities that remain under the Company’s control during the terms of the agreements. The counterparties may redeem callable repurchase agreements, which could substantially shorten the borrowings’ lives. The prepayment or early termination of a repurchase agreement may result in substantial penalties based on market conditions. The following schedule presents the contractual maturities of repurchase agreements, by type of collateral pledged, as of December 31, 2022: 
 
 
 As of December 31, 2022, unused borrowing capacity with the FHLB totaled $405.81 million, net of FHLB letters of credit of $116.28 million. The Company pledged $731.43 million in qualifying loans to secure the FHLB letters of credit, which provide an attractive alternative to pledging securities for public unit deposits. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Derivative Instruments and Hedging Activities Disclosure [Text Block] | Note 11. Derivative Instruments and Hedging Activities 
 Generally, derivative instruments help the Company manage exposure to market risk and meet customer financing needs. Market risk represents the possibility that fluctuations in external factors such as interest rates, market-driven loan rates, prices, or other economic factors will adversely affect economic value or net interest income. 
 The Company uses interest rate swap contracts to modify its exposure to interest rate risk caused by changes in the LIBOR curve in relation to certain designated fixed rate loans. These instruments are used to convert these fixed rate loans to an effective floating rate. If the LIBOR rate falls below the loan’s stated fixed rate for a given period, the Company will owe the floating rate payer the notional amount times the difference between LIBOR and the stated fixed rate. If LIBOR is above the stated rate for a given period, the Company will receive payments based on the notional amount times the difference between LIBOR and the stated fixed rate. In March 2020, the Company adopted ASU 2020-04, "Reference Rate Reform" which provided temporary guidance to ease the potential burden in accounting for reference rate reform. With global capital markets moving away from LIBOR, the guidance provided optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships that reference LIBOR. The migration from LIBOR is not expected to have any material effect on on the Company's financial statements when and as changes are made to migrate from the reference rate. 
 Certain of the Company’s interest rate swaps qualify as fair value hedging instruments; therefore, fair value changes in the derivative and hedged item attributable to the hedged risk are recognized in earnings in the same period. The fair value hedges were effective as of December 31, 2022. 
 Through July 2022, the Company had certain interest rate swaps that did not qualify as fair value hedges and the fair value changes in the derivatives were recognized in earnings each period. Only July 26, 2022, these swaps were terminated at a cost of $72 thousand. 
 The following table presents the notional, or contractual, amounts and fair values of derivative instruments as of the dates indicated: 
 
 
 The following table presents the interest component of derivative and hedging activity, if applicable, on the consolidated statements of income for the periods indicated: 
 
 
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| Note 12 - Employee Benefit Plans | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Compensation and Employee Benefit Plans [Text Block] | Note 12. Employee Benefit Plans 
 Defined Benefit Plans 
 The Company maintains two nonqualified domestic, noncontributory defined benefit plans (the “Benefit Plans”) for key members of senior management and non-management directors. The Company’s unfunded Benefit Plans include the Supplemental Executive Retention Plan (“SERP”) and the Directors’ Supplemental Retirement Plan (“Directors’ Plan”). The SERP provides for a defined benefit, at normal retirement age, targeted at 35% of the participant’s projected final average compensation, subject to a defined maximum annual benefit. Benefits under the SERP generally become payable at age 62. The Directors’ Plan provides for a defined benefit, at normal retirement age, up to 100% of the participant’s highest consecutive three-year average compensation. Benefits under the Directors’ Plan generally become payable at age 70. The SERP was frozen near the end of 2021; the Directors' Plan was fundamentally frozen at that time as well. The following table presents the changes in the aggregate actuarial benefit obligation for the two plans combined during the periods indicated: 
 
 
 The following table presents the components of net periodic pension cost, the effect on the consolidated statements of income, and the assumed discount rate for the periods indicated: 
 
 
 The following schedule presents the projected benefit payments to be paid under the Benefit Plans, by year, as of December 31, 2022: 
 
 
 Deferred Compensation Plan 
 The Company maintains deferred compensation agreements with certain current and former officers that provide benefit payments, over various periods, commencing at retirement or death. There were no accrued benefits, which are based on the present values of expected payments and estimated life expectancies, as of December 31, 2022 or 2021. There was no deferred compensation plan expense in 2022, 2021, or 2020. 
 The Company maintains a deferred compensation plan, referred to as the WRAP, and is a voluntary, non-tax qualified deferred compensation plan available to certain employees, including executive officers. Under the plan, participants may defer a portion of their base and/or annual incentive compensation. The plan is intended to mirror the Corporation's qualified KSOP, and may include discretionary match that coincides with a match made to the KSOP to the extent participants cannot otherwise receive the full match in the KSOP. The balance as of December 31, 2022 and 2021 was $5.14 million and $5.25 million, respectively. 
 Employee Welfare Plan 
 The Company provides various medical, dental, vision, life, accidental death and dismemberment, and long-term disability insurance benefits to all full-time employees who elect coverage under this program. A third-party administrator manages the health plan. Monthly employer and employee contributions are made to a tax-exempt employee benefits trust where the third-party administrator processes and pays claims. As of December 31, 2022, stop-loss insurance coverage generally limits the Company’s risk of loss to $200 thousand for individual claims and $5.14 million for aggregate claims. Health plan expenses were $4.04 million in 2022, $3.98 million in 2021, and $4.17 million in 2020. 
 Employee Stock Ownership and Savings Plan 
 The Company maintains the Employee Stock Ownership and Savings Plan (“KSOP”) that consists of a 401(k) savings feature that covers all employees that meet minimum eligibility requirements. The Company matches employee contributions at levels determined by the Board of Directors annually. These contributions are made in the first quarter following each plan year and employees must be employed on the last day of the plan year to be eligible. Matching contributions to qualified deferrals under the 401(k) savings component of the KSOP totaled $1.82 million in 2022, $1.71 million in 2021, and $1.51 million in 2020. The KSOP held 309,019 shares of the Company’s common stock as of December 31, 2022, 320,164 shares as of December 31, 2021, and 351,222 shares as of December 31, 2020. 
 Equity-Based Compensation Plans 
 The Company maintains equity-based compensation plans to promote the long-term success of the Company by encouraging officers, employees, directors, and other individuals performing services for the Company to focus on critical long-range objectives. The Company’s equity-based compensation plans include the 2012 Omnibus Equity Compensation Plan (“2012 Plan”), 2004 Omnibus Stock Option Plan, 2001 Director’s Option Plan, 1999 Stock Option Plan, and various other plans obtained through acquisitions. As of December 31, 2022, the 2012 Plan was the only plan available for the issuance of future grants. All plans issued or obtained before the 2012 Plan are frozen and no new grants may be issued; however, any options or awards unexercised and outstanding under those plans remain in effect per their respective terms. The 2012 Plan authorized 600,000 shares available for potential grants of incentive stock options, nonqualified stock options, performance awards, restricted stock, restricted stock units, stock appreciation rights, bonus stock, and stock awards. Grants issued under the 2012 Plan state the period of time the grant may be exercised, not to exceed more than years from the date granted. The Company’s Compensation and Retirement Committee determines the vesting period for each grant; however, if no vesting period is specified the vesting occurs in 25% increments on the first anniversaries of the grant date. 
 The following table presents the pre-tax compensation expense and excess tax benefit recognized in earnings for all equity-based compensation plans for the periods indicated: 
 
 
 Stock Options 
 The following table presents stock option activity and related information for the year ended December 31, 2022: 
 
 
 There were no options granted in 2022. There were 7,575 options exercised in 2022 and 39,995 were exercised in 2021. The intrinsic value of options exercised was $83 thousand in 2022, and $628 thousand in 2021. As of December 31, 2022, unrecognized compensation cost related to nonvested stock options totaled $427 thousand with an expected weighted average recognition period of 1.25 years. The actual compensation cost recognized might differ from this estimate due to various items, including new grants and changes in estimated forfeitures. 
 Restricted Stock Awards 
 The following table presents restricted stock activity and related information for the year ended December 31, 2022: 
 
 
 As of December 31, 2022, unrecognized compensation cost related to nonvested restricted stock/unit awards totaled $1.41 million with an expected weighted average recognition period of 2.01 years. The actual compensation cost recognized might differ from this estimate due to various items, including new awards granted and changes in estimated forfeitures. 
 
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| Note 13 - Other Operating Income and Expense | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Income and Other Expense Disclosure [Text Block] | Note 13. Other Operating Income and Expense 
 The following table presents the components of other operating income and expense for the periods indicated: 
 
 
 
 
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| Note 14 - Income Taxes | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Tax Disclosure [Text Block] | Note 14. Income Taxes 
 Income tax expense is comprised of current and deferred, federal and state income taxes on the Company’s pre-tax earnings. The following table presents the components of the income tax provision for the periods indicated: 
 
 
 The Company’s effective tax rate, income tax as a percent of pre-tax income, may vary significantly from the statutory rate due to permanent differences and available tax credits. Permanent differences are income and expense items excluded by law in the calculation of taxable income. The Company’s most significant permanent differences generally include interest income on municipal securities and increases in the cash surrender value of life insurance policies. The following table reconciles the Company’s income tax expense to the amount computed by applying the federal statutory tax rate to pre-tax income for the periods indicated: 
 
 
 Deferred taxes derived from continuing operations reflect the net effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and amounts used for tax purposes. The following table presents the significant components of the net deferred tax asset as of the dates indicated: 
 
 
 The Company had no unrecognized tax benefits or accrued interest or penalties as of December 31, 2022 or 2021. The Company had no deferred tax valuation allowance recorded as of December 31, 2022 or 2021, as management believes it is more likely than not that all of the deferred tax assets will be realized against deferred tax liabilities and projected future taxable income. The Company and its subsidiaries are subject to U.S. federal income tax of the various states. The Company is no longer subject to examination by federal or state taxing authorities for years before 2019. 
 
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| Note 15 - Accumulated Other Comprehensive Income | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Comprehensive Income (Loss) Note [Text Block] | Note 15. Accumulated Other Comprehensive Income 
 The following table presents the changes in AOCI, net of tax and by component, during the periods indicated: 
 
 
 The following table presents reclassifications out of AOCI, by component, during the periods indicated: 
 
 
 
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| Note 16 - Fair Value | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] | Note 16. Fair Value 
 Financial Instruments Measured at Fair Value 
 The following discussion describes the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments under the valuation hierarchy. 
 Assets and Liabilities Reported at Fair Value on a Recurring Basis 
 Available-for-Sale Debt Securities. Debt securities available for sale are reported at fair value on a recurring basis. The fair value of Level 1 securities is based on quoted market prices in active markets, if available. If quoted market prices are not available, fair values are measured utilizing independent valuation techniques of identical or similar securities for which significant assumptions are primarily derived from or corroborated by observable market data. Level 2 securities use fair value measurements from independent pricing services obtained by the Company. These fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and bond terms and conditions. The Company’s Level 2 securities include U.S. Agency and Treasury securities, municipal securities, and mortgage-backed securities. Securities are based on Level 3 inputs when there is limited activity or less transparency to the valuation inputs. In the absence of observable or corroborated market data, internally developed estimates that incorporate market-based assumptions are used when such information is available. 
 Fair value models may be required when trading activity has declined significantly or does not exist, prices are not current, or pricing variations are significant. For Level 3 securities, the Company obtains the cash flow of specific securities from third parties that use modeling software to determine cash flows based on market participant data and knowledge of the structures of each individual security. The fair values of Level 3 securities are determined by applying proper market observable discount rates to the cash flow derived from third-party models. Discount rates are developed by determining credit spreads above a benchmark rate, such as LIBOR, and adding premiums for illiquidity, which are based on a comparison of initial issuance spread to LIBOR versus a financial sector curve for recently issued debt to LIBOR. Securities with increased uncertainty about the receipt of cash flows are discounted at higher rates due to the addition of a deal specific credit premium based on assumptions about the performance of the underlying collateral. Finally, internal fair value model pricing and external pricing observations are combined by assigning weights to each pricing observation. Pricing is reviewed for reasonableness based on the direction of specific markets and the general economic indicators. 
 Equity Securities. Equity securities are recorded at fair value on a recurring basis and included in other assets in the consolidated balance sheets. The Company uses Level 1 inputs to value equity securities that are traded in active markets. Equity securities that are not actively traded are classified in Level 2. 
 Loans Held for Investment. Loans held for investment are reported at fair value using the exit price notion, which is derived from third-party models. Loans related to fair value hedges are recorded at fair value on a recurring basis. 
 Deferred Compensation Assets and Liabilities. Securities held for trading purposes are recorded at fair value on a recurring basis and included in other assets in the consolidated balance sheets. These securities include assets related to employee deferred compensation plans, which are generally invested in Level 1 equity securities. The liability associated with these deferred compensation plans is carried at the fair value of the obligation to the employee, which corresponds to the fair value of the invested assets. 
 Derivative Assets and Liabilities. Derivatives are recorded at fair value on a recurring basis. The Company obtains dealer quotes, Level 2 inputs, based on observable data to value derivatives. 
 The following tables summarize financial assets and liabilities recorded at fair value on a recurring basis, by the level of valuation inputs in the fair value hierarchy, as of the dates indicated: 
 
 
 
 
 
 Changes in Level 3 Fair Value Measurements 
 The following table presents the changes in Level 3 assets recorded at fair value on a recurring basis during the period indicated: 
 
 
 No transfers into or out of Level 3 of the fair value hierarchy occurred during the year ended December 31, 2022 or 2021. 
 Assets Measured at Fair Value on a Nonrecurring Basis 
 The Company maintains an active and robust problem credit identification system. The review includes obtaining third-party collateral valuations to help management identify potential credit impairment and determine the amount of impairment to record. The Company’s Special Assets staff manages and monitors all impaired loans. Internal collateral valuations are generally performed within two to four weeks of identifying the initial potential impairment. The internal valuation compares the original appraisal to current local real estate market conditions and considers experience and expected liquidation costs. The Company typically receives a third-party valuation within thirty to forty-five days of completing the internal valuation. When a third-party valuation is received, it is reviewed for reasonableness. Once the valuation is reviewed and accepted, discounts are applied to fair market value, based on, but not limited to, our historical liquidation experience for like collateral, resulting in an estimated net realizable value. The estimated net realizable value is compared to the outstanding loan balance to determine the appropriate amount of specific impairment reserve. 
 OREO. OREO is recorded at fair value on a nonrecurring basis using Level 3 inputs. The Company calculates the fair value of OREO from current or prior appraisals that have been adjusted for valuation declines, estimated selling costs, and other proprietary qualitative adjustments that are deemed necessary. 
 The following tables present assets measured at fair value on a nonrecurring basis, by the level of valuation inputs in the fair value hierarchy, as of the dates indicated: 
 
 
 
 
 Quantitative Information about Level 3 Fair Value Measurements 
 The following table provides quantitative information for assets measured at fair value on a nonrecurring basis using Level 3 valuation inputs as of the dates indicated: 
 
 
 
 
 
 
 
 
 The following tables present the carrying amounts and fair values of financial instruments, by the level of valuation inputs in the fair value hierarchy, as of the dates indicated: 
 
 
 
 
 
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| Note 17 - Earnings Per Share | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Earnings Per Share [Text Block] | Note 17. Earnings per Share 
 The following table presents the calculation of basic and diluted earnings per common share for the periods indicated: 
 
 
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| Note 18 - Related Party Transactions | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Related Party Transactions Disclosure [Text Block] | Note 18. Related Party Transactions 
 The Company engages in transactions with related parties in the normal course of business. Related parties include directors, executive officers, and principal shareholders and their immediate family members, business interests, and affiliates. All related party transactions are made on terms that are substantially the same as those prevailing at the time for similar transactions with unrelated parties, including interest rates and collateral. The following table presents the changes in loans with related parties during the periods indicated: 
 
 
 
 
 Deposits from related parties totaled $14.59 million as of December 31, 2022, and $11.92 million as of December 31, 2021. Legal fees paid to related parties totaled $41 thousand in 2022, $80 thousand in 2021, and $70 thousand in 2020. There were no lease payments paid to related parties in 2022, 2021, or 2020. Other expense paid to related parties totaled $53 thousand in 2022, $104 thousand in 2021, and $68 thousand in 2020. 
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| Note 19 - Litigation, Commitments, and Contingencies | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Commitments and Contingencies Disclosure [Text Block] | Note 19. Litigation, Commitments, and Contingencies 
 Litigation 
 In the normal course of business, the Company is a defendant in various legal actions and asserted claims. While the Company and its legal counsel are unable to assess the ultimate outcome of each of these matters with certainty, the Company believes the resolution of these actions, singly or in the aggregate, should not have a material adverse effect on its financial condition, results of operations, or cash flows. 
 
 Commitments and Contingencies 
 The Company is a party to financial instruments with off balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit, and financial guarantees. These instruments involve, to varying degrees, elements of credit and interest rate risk beyond the amount recognized in the consolidated balance sheets. The contractual amounts of these instruments reflect the extent of involvement the Company has in particular classes of financial instruments. If the other party to a financial instrument does not perform, the Company’s credit loss exposure is the same as the contractual amount of the instrument. The Company uses the same credit policies in making commitments and conditional obligations as it does for on balance sheet instruments. 
 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many commitments are expected to expire without being drawn on, the total commitment amounts do not necessarily represent future cash requirements. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of each customer on a case-by-case basis. Collateral may include accounts receivable, inventory, property, plant and equipment, and income producing commercial properties. The Company maintains a reserve for the risk inherent in unfunded lending commitments, which is included in other liabilities in the consolidated balance sheets. 
 Standby letters of credit and financial guarantees are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending credit to customers. The amount of collateral obtained, if deemed necessary, to secure the customer’s performance under certain letters of credit is based on management’s credit evaluation of the customer. 
 The following table presents the off-balance sheet financial instruments as of the dates indicated: 
 
 
 
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| Note 20 - Regulatory Requirements and Restrictions | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Regulatory Capital Requirements under Banking Regulations [Text Block] | Note 20. Regulatory Requirements and Restrictions 
 The Company and the Bank are subject to various regulatory capital requirements administered by state and federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under the capital adequacy guidelines and the regulatory framework for prompt corrective action, which applies only to the Bank, the Bank must meet specific capital guidelines that involve quantitative measures of the entity’s balance sheet assets and off-balance sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. In addition, the Company and the Bank are subject to various regulatory restrictions related to the payment of dividends, including requirements to maintain capital at or above regulatory minimums. 
 The current risk-based capital requirements, based on the international capital standards known as Basel III, requires the Company and the Bank to maintain minimum amounts and ratios of Common Equity Tier 1 capital, Tier 1 capital, and total capital to risk-weighted assets, and of Tier 1 capital to average consolidated assets (“Tier 1 leverage ratio”), as defined in the regulations. Basel III’s capital conservation buffer (“CCB”), which is intended to absorb losses during periods of economic stress, increased those minimum ratios by 2.5% on January 1, 2019). 
 The following tables present actual and required capital ratios, under Basel III capital rules, as of the dates indicated: 
 
 
 
 
 
 
 
 
 
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| Note 21 - Parent Company Financial Information | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Condensed Financial Information of Parent Company Only Disclosure [Text Block] | Note 21. Parent Company Financial Information 
 The following tables present condensed financial information for the parent company, First Community Bankshares, Inc., as of and for the dates indicated: 
 
 
 
 
 
 
 
 
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| Note 23 - Quarterly Financial Data (Unaudited) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quarterly Financial Information [Text Block] | Note 22. Quarterly Financial Data (Unaudited) 
 The following tables present selected financial data for the periods indicated: 
 
 
 
 
 
 
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| Significant Accounting Policies (Policies) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation 
 First Community Bankshares, Inc. (the “Company”) is a financial holding company incorporated under the laws of the Commonwealth of Virginia. The Company’s principal executive office is located in Bluefield, Virginia. The Company provides banking products and services to individual and commercial customers through its wholly owned subsidiary First Community Bank (the “Bank”), a Virginia-chartered banking institution founded in 1874. The Bank offers wealth management and investment advice through its Trust Division and wholly owned subsidiary First Community Wealth Management (“FCWM”). Unless the context suggests otherwise, the terms “First Community,” “Company,” “we,” “our,” and “us” refer to First Community Bankshares, Inc. and its subsidiaries as a consolidated entity. 
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| Consolidation, Policy [Policy Text Block] | Principles of Consolidation 
 The Company’s accounting and reporting policies conform with U.S. generally accepted accounting principles (“GAAP”) and prevailing practices in the banking industry. The consolidated financial statements include all accounts of the Company and its wholly owned subsidiaries and eliminate all intercompany balances and transactions. The Company operates in business segment, Community Banking, which consists of all operations, including commercial and consumer banking, lending activities, and wealth management. 
 The Company maintains investments in variable interest entities (“VIEs”). VIEs are legal entities in which equity investors do not have sufficient equity at risk for the entity to independently finance its activities, or as a group, the holders of the equity investment at risk lack the power through voting or similar rights to direct the activities of the entity that most significantly impact its economic performance, or do not have the obligation to absorb the expected losses of the entity or the right to receive expected residual returns of the entity. Consolidation of a VIE is required if a reporting entity is the primary beneficiary of the VIE. The Company periodically reviews its VIEs and has determined that it is not the primary beneficiary of any VIE; therefore, the assets and liabilities of these entities are not consolidated into the financial statements. 
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| Reclassification, Comparability Adjustment [Policy Text Block] | Reclassification 
 Certain amounts reported in prior years have been reclassified to conform to the current year’s presentation. These reclassifications had no effect on the Company’s results of operations, financial position, or net cash flow. 
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| Use of Estimates, Policy [Policy Text Block] | Use of Estimates 
 Preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that require the most subjective or complex judgments relate to fair value measurements, the allowance for loan losses and goodwill and other intangible asset. For additional information, see “Critical Accounting Policies” in Part II, Item 7 of this report. 
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| Fair Value Measurement, Policy [Policy Text Block] | Fair Value Measurements 
 Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability, in the principal or most advantageous market for the asset or liability, in an orderly transaction between market participants. Market participants are buyers and sellers in the principal market that are independent, knowledgeable, able to transact, and willing to transact. 
 The fair value hierarchy ranks the inputs used in measuring fair value as follows: 
 
 
 
 
 The Company uses fair value measurements to record adjustments to certain financial assets and liabilities on a recurring basis. The Company may be required to record certain assets at fair value on a nonrecurring basis in specific circumstances, such as evidence of impairment. Methodologies used to determine fair value might be highly subjective and judgmental in nature; therefore, valuations may not be precise. If the Company determines that a valuation technique change is necessary, the change is assumed to have occurred at the end of the respective reporting period. 
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| Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents 
 Cash and cash equivalents include cash and due from banks, federal funds sold, and interest-bearing balances on deposit with the Federal Home Loan Bank (“FHLB”), the Federal Reserve Bank (“FRB”), and correspondent banks that are available for immediate withdrawal. 
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| Marketable Securities, Policy [Policy Text Block] | Investment Securities 
 Management classifies debt securities as held-to-maturity or available-for-sale based on the intent and ability to hold the securities to maturity. Debt securities that the Company has the intent and ability to hold to maturity are classified as held-to-maturity securities and carried at amortized cost. Debt securities not classified as held to maturity are classified as available-for-sale securities and carried at estimated fair value. Available-for-sale securities consist of securities the Company intends to hold for indefinite periods of time including securities to be used as part of the Company’s asset/liability management strategy and securities that may be sold for a variety of reasons. Unrealized gains and losses on available-for-sale securities are included in accumulated other comprehensive income (“AOCI”), net of income taxes, in stockholders’ equity. Gains or losses on calls, maturities, or sales of investment securities are recorded based on the specific identification method and included in noninterest income. Premiums are amortized to first call date and discounts are accreted over the life of a security into interest income. 
 Management evaluates securities for impairment where there has been a decline in fair value below the amortized cost basis of a security to determine whether there is a credit loss associated with the decline in fair value on at least a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Credit losses are calculated individually, rather than collectively, using a discounted cash flow method, whereby Management compares the present value of expected cash flows with the amortized cost basis of the security. The credit loss component would be recognized through the provision for credit losses and the creation of an allowance for credit losses. Consideration is given to (1) the financial condition and near-term prospects of the issuer including looking at default and delinquency rates, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) our intent and ability to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that we will be required to sell the debt security prior to recovering its fair value, (5) the anticipated outlook for changes in the general level of interest rates, (6) credit ratings, (7) third party guarantees, and (8) collateral values. The Company evaluates impairment where there has been a decline in fair value below the amortized cost basis of a security to determine whether there is a credit loss associated with the decline in fair value. The nature of the collateral is considered along with potential future changes in collateral values, default rates, delinquency rates, third-party guarantees, credit ratings, interest rate changes since purchase, volatility of the security’s fair value and historical loss information for financial assets secured with similar collateral among other factors. Credit losses are calculated individually, rather than collectively, using a discounted cash flow method, whereby management compares the present value of expected cash flows with the amortized cost basis of the security. The credit loss component would be recognized through the provision for credit losses in the Statement of Income and establish an allowance for credit losses on the Balance Sheet. 
     The Company excludes the accrued interest receivable from the amortized cost basis in measuring expected credit losses on the investment securities.  Nor does the Company record an allowance for credit losses on accrued interest receivable.  As of   
     December 31, 2022, the accrued interest receivable for investment securities available for sale was $ 
    1.34  
    million. 
    
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| Other Investments [Policy Text Block] | Other Investments 
 As a condition of membership in the FHLB and the FRB, the Company is required to hold a minimum level of stock in the FHLB of Atlanta and the FRB of Richmond. These securities are carried at cost and periodically reviewed for impairment. The total investment in FHLB and FRB stock, which is included in other assets, was $10.02 million as of December 31, 2022, and $9.78 million as of December 31, 2021. 
 The Company owns certain long-term equity investments without readily determinable fair values, including certain tax credit limited partnerships and various limited liability companies that manage real estate investments, facilitate tax credits, and provide title insurance and other related financial services. These investments are accounted for at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment. The total carrying value in these investments, which is included other assets, totaled $3.78 million as of December 31, 2022, and $3.85 million as of December 31, 2021. 
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| Business Combinations Policy [Policy Text Block] | Business Combinations 
 The Company accounts for business combinations using the acquisition method of accounting as outlined in using Topic 805 of the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”). Under this method, all identifiable assets acquired, including purchased loans, and liabilities assumed are recorded at fair value. Any excess of the purchase price over the fair value of net assets acquired is recorded as goodwill. In instances where the price of the acquired business is less than the net assets acquired, a gain on the purchase is recorded. Fair values are assigned based on quoted prices for similar assets, if readily available, or appraisals by qualified independent parties for relevant asset and liability categories. Certain financial assets and liabilities are valued using discount models that apply current discount rates to streams of cash flow. Valuation methods require assumptions, which can result in alternate valuations, varying levels of goodwill or bargain purchase gains, or amortization expense or accretion income. Management must make estimates for the useful or economic lives of certain acquired assets and liabilities that are used to establish the amortization or accretion of some intangible assets and liabilities, such as core deposits. Fair values are subject to refinement for up to one year after the closing date of the acquisition as additional information about the closing date fair values becomes available. Acquisition and divestiture activities are included in the Company’s consolidated results of operations from the closing date of the transaction. Acquisition and divestiture related costs are recognized in noninterest expense as incurred. For additional information, see “Purchased Deteriorated Loans” and “Intangible Assets” below. 
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| Financing Receivable, Held-for-investment [Policy Text Block] | Loans Held for Investment 
 Loans classified as held for investment are originated with the intent to hold indefinitely, until maturity, or until pay-off. Loans held for investment are carried at the principal amount outstanding, net of unearned income and any necessary write-downs to reduce individual loans to net realizable value. Interest income on performing loans is recognized as interest income at the contractual rate of interest. Loan origination fees, including loan commitment and underwriting fees, are reduced by direct costs associated with loan processing, including salaries, legal review, and appraisal fees. Net deferred loan fees are deferred and amortized over the life of the related loan or commitment period. 
 Purchased Performing Loans. Purchased loans that are deemed to be performing at the acquisition date are accounted for using the contractual cash flow method of accounting, which results in the loans being recorded at fair value with a credit discount. The fair value discount or premium is accreted or amortized, as the case may be, as an adjustment to yield over the estimated contractual lives of the loans. 
 Purchased Credit Deteriorated (“PCD”) Loans. Purchased credit-deteriorated, otherwise referred to herein as PCD, assets are defined as acquired individual financial assets (or acquired groups of financial assets with similar risk characteristics) that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination, as determined by the Company’s assessment. The Company records acquired PCD loans by adding the expected credit losses (i.e. allowance for credit losses) to the purchase price of the financial assets rather than recording through the provision for credit losses in the income statement. The expected credit loss, as of the acquisition date, of a PCD loan is added to the allowance for credit losses. The non-credit discount or premium is the difference between the fair value and the amortized cost basis as of the acquisition date. Subsequent to the acquisition date, the change in the ACL on PCD loans is recognized through the provision for credit losses. The non-credit discount or premium is accreted or amortized, respectively, into interest income over the remaining life of the PCD loan on a level-yield basis. In accordance with the transition requirements within the standard, the Company’s acquired purchased credit impaired loans were treated as PCD loans. 
 Individually Evaluated Loans and Nonperforming Assets. The Company maintains an active and robust problem credit identification system through its ongoing credit review function. When a loan no longer shares similar risk characteristics with its segment, the asset is assessed to determine whether it should be included in another pool or should be individually evaluated. The Company currently maintains a net book balance threshold of $500,000 for individually-evaluated loans. Generally, individually-evaluated loans other than Troubled Debt Restructurings, otherwise referred to herein as “TDRs,” are on nonaccrual status. Based on the threshold above, consumer loans will generally remain in pools unless they meet the dollar threshold and foreclosure is probable. The expected credit losses on individually-evaluated loans will be estimated based on discounted cash flow analysis unless the loan meets the criteria for use of the fair value of collateral, either by virtue of an expected foreclosure or through meeting the definition of collateral-dependent. Financial assets that have been individually evaluated can be returned to a pool for purposes of estimating the expected credit loss insofar as their credit profile improves and that the repayment terms were not considered to be unique to the asset. The Company follows its nonaccrual policy by reversing contractual interest income in the income statement when the Company places a loan on nonaccrual status. Therefore, Management excludes the accrued interest receivable balance from the amortized cost basis in measuring expected credit losses on the portfolio and does not record an allowance for credit losses on accrued interest receivable. The accrual of interest, which is based on the daily amount of principal outstanding, on individually evaluated loans is generally continued unless the loan becomes delinquent 90 days or more. 
 Loans are considered past due when either principal or interest payments become contractually delinquent by 30 days or more. The Company’s policy is to discontinue the accrual of interest, if warranted, on loans based on the payment status, evaluation of the related collateral, and the financial strength of the borrower. Loans that are 90 days or more past due are placed on nonaccrual status. Management may elect to continue the accrual of interest when the loan is well secured and in process of collection. When interest accruals are discontinued, interest accrued and not collected in the current year is reversed from income, and interest accrued and not collected from prior years is charged to the allowance for loan losses. Nonaccrual loans may be returned to accrual status when all principal and interest amounts contractually due, including past due payments, are brought current; the ability of the borrower to repay the obligation is reasonably assured; and there is generally a period of at least six months of repayment performance by the borrower in accordance with the contractual terms. 
 Seriously delinquent loans are evaluated for loss mitigation options. Closed-end retail loans are generally charged off against the allowance for credit losses when the loans become 120 days past due. Open-end retail loans and residential real estate secured loans are generally charged off when the loans become 180 days past due. Unsecured loans are generally charged off when the loans become 90 days past due. All other loans are charged off against the allowance for loan losses after collection attempts have been exhausted, which generally is within 120 days. Recoveries of loans previously charged off are credited to the allowance for loan losses in the period received. 
 Loans are considered troubled debt restructurings when the Company grants concessions, for legal or economic reasons, to borrowers experiencing financial difficulty that would not otherwise be considered. The Company generally makes concessions in interest rates, loan terms, and/or amortization terms. All TDRs $500 thousand or greater are evaluated for a specific reserve based on either the collateral or net present value method, whichever is most applicable. TDRs under $500 thousand are subject to the reserve calculation for classified loans based primarily on the historical loss rate. At the date of modification, nonaccrual loans are classified as nonaccrual TDRs. TDRs classified as nonperforming at the date of modification are returned to performing status after six months of satisfactory payment performance; however, these loans remain identified as individually evaluated until full payment or other satisfaction of the obligation occurs. 
 Other real estate owned (“OREO”) acquired through foreclosure, or other settlement, is carried at the lower of cost or fair value less estimated selling costs. The fair value is generally based on current third-party appraisals. When a property is transferred into OREO, any excess of the loan balance over the net realizable fair value is charged against the allowance for loan losses. Operating expenses, gains, and losses on the sale of OREO are included in other noninterest expense in the Company’s consolidated statements of income after any fair value write-downs are recorded as valuation adjustments. 
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| Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] | Allowance for Credit Losses (ACL) 
 The Company reviews our allowance for credit losses quarterly to determine if it is sufficient to absorb expected loan losses in the portfolio. This determination requires management to make significant estimates and assumptions. While the Company uses its best judgment and available information, the ultimate adequacy of the allowance is dependent upon a variety of factors beyond our control, including the performance of our loan portfolio, the economy, changes in interest rates, and the view of regulatory authorities towards loan classifications. These uncertainties may result in material changes to the allowance for credit losses in the near term; however, the amount of the change cannot reasonably be estimated. Prior to January 1, 2021, we followed the incurred loss accounting method for reserving for loan losses which required us to estimate losses that had been incurred as of the balance sheet date. For additional information, see this note, Note 1, “Basis of Presentation,” to the Consolidated Financial Statements in "Recent Accounting Standards". 
 The ACL is an estimate of losses that will result from the inability of borrowers to make required loan payments. The Company established the incremental increase in the ACL at the adoption through retained earnings and subsequent adjustments will be made through a provision for credit losses charged to earnings. Loans charged off are recorded against the ACL and subsequent recoveries increase the ACL when they are recognized. 
 A systematic methodology is used to determine ACL for loans held for investment and certain off-balance sheet credit exposures. The ACL is a valuation account that is deducted from the amortized cost basis to present the net amount expected to be collected on the loan portfolio. The Company considers the effects of past events, current conditions, and reasonable and supportable forecasts on the collectability of the loan portfolio. The Company’s estimate of its ACL involves a high degree of judgement and reflects management’s best estimate within the range of expected credit losses. The Company recognizes in net income the amount needed to adjust the ACL for management’s current estimate of expected credit losses. The Company’s ACL is calculated using collectively evaluated and individually evaluated loans. 
 The Company collectively evaluates loans that share similar risk characteristics. In general, loans are segmented by loan purpose. The Company collectively evaluates loans within the following consumer and commercial segments: Loans secured by 1-4 Family Properties, Home Equity Lines of Credit (“HELOC”), Owner Occupied Construction Loans, Consumer Loans, Commercial and Industrial, Multi-family, Non-farm/Non-residential Property, Commercial Construction/A&D/other Land Loans, Agricultural Loans, Credit Card Loans, Loans Secured by Farmland, and Other Consumer Loans (Overdrafts). 
 Risk characteristics of residential real estate loans which include loans secured by Single family properties, HELOC, and Owner occupied construction loans are dependent upon individual borrowers who are affected by changes in general economic conditions, real estate valuations, and the demand for housing. Commercial and Industrial, Multi-family residential, Non-farm/non-residential, Agricultural, and Loans secured by Farmland are similar in that they are generally dependent upon the borrower's internal cash flow from operations to service the debt and changes in general economic conditions. Commercial construction, Development, and other land loans, Consumer, and Other consumer loans (open pool) are similar in that they are dependent on changes in general economic conditions. 
 For collectively evaluated loans, the Company uses a combination of discounted cash flow and remaining life to estimate expected credit losses. During 2022, the Company changed third party model providers which necessitated a change from remaining life to open pool for the portfolios noted above. The change in method was not quantitatively significant. In addition to its own loss experience, management also includes peer bank historical loss experience in its assessment of expected credit losses to determine the ACL. The Company utilized call report data to measure its and its peers' historical credit losses experience with similar risk characteristics within the segments over an economic cycle. The Company reviewed the historical loss information to appropriately adjust for differences in current asset specific risk characteristics. Also considered were further adjustments to historical loss information for current conditions and reasonable and supportable forecasts that differ from the conditions that existed for the period over which historical information was evaluated. For the majority of the segments of collectively evaluated loans, the Company incorporated at least one macroeconomic driver using a statistical regression modeling methodology. 
 The Company considers forward-looking information in estimated expected credit losses. The Company subscribes to a third-party service which provides summary detail of dozens of economic forecasts. Using that information and other publicly available economic forecasts, management determines the economic variables to use for the one-year reasonable and supportable forecast period. Management has determined that the forecast period is consistent with how the Company has historically forecasted for its profitability planning and capital management. Management has evaluated the appropriateness of the reasonable and supportable forecast for the current period along with the inputs used in the estimation of expected credit losses. For the contractual term that extends beyond the reasonable and supportable forecast period, the Company reverts to historical loss information over eight quarters using a straight-line approach. Management may apply different reversion techniques depending on the economic environment for the financial asset portfolio and as of the current period has utilized a linear reversion technique. 
 Included in its systematic methodology to determine its ACL for loans held for investment and certain off-balance sheet credit exposures, The Company considers the need to qualitatively adjust expected credit losses for information not already captured in the loss estimation process. These qualitative adjustments either increase or decrease the quantitative model estimation. Each period the Company considers qualitative factors that are relevant within the qualitative framework that includes the following: 1) changes in lending policies and procedures, 2) changes in economic conditions, 3) changes in portfolio nature and volume, 4) changes in management, 5) changes in past due loans, 6) changes in the quality of the Company’s credit review system, 7) changes in the value of underlying collateral, 8) the effect of concentrations of credit, and 9) the effect of other external factors. 
 When a loan no longer shares similar risk characteristics with its segment, the asset is assessed to determine whether it should be included in another pool or should be individually evaluated. The Company currently maintains a net book balance threshold of $500,000 for individually-evaluated loans. Generally, individually-evaluated loans other than TDRs are on nonaccrual status. Based on the threshold above, consumer loans will generally remain in pools unless they meet the dollar threshold and foreclosure is probable. The expected credit losses on individually-evaluated loans will be estimated based on discounted cash flow analysis unless the loan meets the criteria for use of the fair value of collateral, either by virtue of an expected foreclosure or through meeting the definition of collateral-dependent. Financial assets that have been individually evaluated can be returned to a pool for purposes of estimating the expected credit loss insofar as their credit profile improves and that the repayment terms were not considered to be unique to the asset. 
 The Company measures expected credit losses over the contractual term of the loans. When determining the contractual term, the Company considers expected prepayments but is precluded from considering expected extensions, renewals, or modifications, unless the Company reasonably expects it will execute a TDR with a borrower. In the event of a reasonably-expected TDR, the Company factors the reasonably-expected TDR into the current expected credit losses estimate. The effects of a TDR are recorded when an individual asset is specifically identified as a reasonably-expected TDR. For consumer loans, the point at which a TDR is reasonably expected is when the Company approves the borrower’s application for a modification (i.e. the borrower qualifies for the TDR) or when the Credit Administration department approves loan concessions on substandard loans. For commercial loans, the point at which a TDR is reasonably expected is when the Company approves the loan for modification or when the Credit Administration department approves loan concessions on substandard loans. The Company uses a discounted cash flow methodology to calculate the effect of the concession provided to the borrower in TDR within the ACL. 
 The Company has a variety of assets that have a component that qualifies as an off-balance sheet exposure. These primarily include undrawn portions of revolving lines of credit and standby letters of credit. The expected losses associated with these exposures within the unfunded portion of the loans will be recorded as a liability on the balance sheet with an offsetting income statement expense. The Company has determined that a majority of the Company’s off-balance-sheet credit exposures are not unconditionally cancellable. As of December 31, 2022, the liability recorded for expected credit losses on unfunded commitments in Other Liabilities was $1.20 million. The estimates are determined based on the likelihood of funding during the contractual term and an estimate of credit losses subsequent to funding. Estimated credit losses on subsequently funded balances are based on the same assumptions as used to estimate credit losses on existing funded loans. The current adjustment to the ACL for unfunded commitments would be recognized through other operating expense in the Statement of Income. For additional information, see Note 6, “Allowance for Loan Losses,” to the Consolidated Financial Statements in Item 8 of this report. 
 
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| Property, Plant and Equipment, Policy [Policy Text Block] | Premises and Equipment 
 Premises, equipment, and leases are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the respective assets. Useful lives range from 5 to 10 years for furniture, fixtures, and equipment; 3 to 5 years for computer software, hardware, and data handling equipment; and 7 to 40 years for buildings and building improvements. Land improvements are amortized over a period of 20 years and leasehold improvements are amortized over the lesser of the term of the respective leases plus the first optional renewal period, when renewal is reasonably assured, or the estimated useful lives of the improvements. The Company leases various properties within its branch network. Leases generally have initial terms of up to 10 years and most contain options to renew with increases in rent. All leases are accounted for as operating leases. Maintenance and repairs are charged to current operations while improvements that extend the economic useful life of the underlying asset are capitalized. Disposition gains and losses are reflected in current operations. 
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| Goodwill and Intangible Assets, Policy [Policy Text Block] | Intangible Assets 
 Intangible assets consist of goodwill, core deposit intangible assets, and other identifiable intangible assets that result from business combinations. Goodwill represents the excess of the purchase price over the fair value of net assets acquired that is allocated to the appropriate reporting unit when acquired. Core deposit intangible assets represent the future earnings potential of acquired deposit relationships that are amortized over their estimated remaining useful lives. Other identifiable intangible assets primarily represent the rights arising from contractual arrangements that are amortized using the straight-line method. 
 An interim analysis of Goodwill is performed quarterly, and goodwill is tested for impairment annually, on October 31st, or more frequently if events or circumstances indicate there may be impairment. We have reporting unit, Community Banking. If we elect to perform a qualitative assessment, we evaluate factors such as macroeconomic conditions, industry and market considerations, overall financial performance, changes in stock price, and progress towards stated objectives in determining if it is more likely than not that the fair value of our reporting unit is less than its carrying amount. If we conclude that it is more likely than not that the fair value of our reporting unit is less than its carrying amount, a quantitative test is performed; otherwise, no further testing is required. The quantitative test consists of comparing the fair value of our reporting unit to its carrying amount, including goodwill. If the fair value of our reporting unit is greater than its book value, no goodwill impairment exists. If the carrying amount of our reporting unit is greater than its calculated fair value, a goodwill impairment charge is recognized for the difference. 
 Management has concluded that there was goodwill impairment for 2022. 
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| Repurchase Agreements, Collateral, Policy [Policy Text Block] | Securities Sold Under Agreements to Repurchase 
 Securities sold under agreements to repurchase are generally accounted for as collateralized financing transactions and recognized as short-term borrowings in the Company’s consolidated balance sheets. Securities, generally U.S. government and federal agency securities, pledged as collateral under these arrangements can be sold or repledged only if replaced by the secured party. The fair value of the collateral provided to a third party is continually monitored and additional collateral is provided as appropriate. 
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| Derivatives, Policy [Policy Text Block] | Derivative Instruments 
 The Company primarily uses derivative instruments to protect against the risk of adverse price or interest rate movements on the value of certain assets and liabilities and on future cash flows. Derivative instruments represent contracts between parties that usually require little or no initial net investment and result in one party delivering cash or another asset to the other party based on a notional amount and an underlying asset as specified in the contract such as interest rates, equity security prices, currencies, commodity prices, or credit spreads. These derivative instruments may consist of interest rate swaps, floors, caps, collars, futures, forward contracts, and written and purchased options. Derivative contracts often involve future commitments to exchange interest payment streams or currencies based on a notional or contractual amount, such as interest rate swaps or currency forwards, or to purchase or sell other financial instruments at specified terms on a specified date, such as options to buy or sell securities or currencies. Derivative instruments are subject to counterparty credit risk due to the possibility that the Company will incur a loss because a counterparty, which may be a bank, a broker-dealer or a customer, fails to meet its contractual obligations. This risk is measured as the expected positive replacement value of contracts. Derivative contracts may be executed only with exchanges or counterparties approved by the Company’s Asset/Liability Management Committee. 
 If certain conditions are met, a derivative may be designated as a hedge related to fair value, cash flow, or foreign exposure risk. The recognition of changes in the fair value of a derivative instrument varies depending on the intended use of the derivative and the resulting designation. The Company accounts for hedges of customer loans as fair value hedges. The change in fair value of the hedging derivative and the change in fair value of the hedged exposure are recorded in earnings. Any hedge ineffectiveness is also reflected in current earnings. Changes in the fair value of derivatives not designated as hedging instruments are recognized as a gain or loss in earnings. The Company formally documents any relationships between hedging instruments and hedged items and the risk management objective and strategy for undertaking each hedged transaction. All derivative instruments are reported at fair value in the consolidated balance sheets. 
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| Share-Based Payment Arrangement [Policy Text Block] | Equity-Based Compensation 
 The cost of employee services received in exchange for equity instruments, including stock options and restricted stock awards, is generally measured at fair value on the grant date. The Black-Scholes-Merton valuation model is used to estimate the fair value of stock options at the grant date while the fair value of restricted stock awards is based on the market price of the Company’s common stock on the grant date. The Black-Scholes-Merton model incorporates the following assumptions: the expected volatility is based on the weekly historical volatility of the Company’s common stock price over the expected term of the option; the expected term is generally calculated using the shortcut method; the risk-free interest rate is based on the U.S. Department of the Treasury’s (“Treasury”) yield curve on the grant date with a term comparable to the grant; and the dividend yield is based on the Company’s dividend yield using the most recent dividend rate paid per share and trading price of the Company’s common stock. Compensation cost is recognized over the required service period, generally defined as the vesting period for stock option awards and as the restriction period for restricted stock awards. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. 
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| Revenue from Contract with Customer [Policy Text Block] | Revenue Recognition 
 Wealth management. Wealth management income represents monthly fees due from wealth management customers in consideration for managing and administrating the customers' assets. Wealth management and trust services include custody of assets, investment management, escrow services, fees for trust services and similar fiduciary activities. Revenue is recognized when the performance obligation is completed each month, which is generally the time that payment is received. Income also includes fees received from a third party broker-dealer as part of a revenue-sharing agreement for fees earned from customers that are referred to the third party. These fees are paid to the Company by the third party on a quarterly basis and recognized ratably throughout the quarter as the performance obligation is satisfied. 
 Service charges on deposits and other service charges and fees. 
 Service charges on deposits and other service charges and fees represent general service fees for account maintenance and activity and transaction-based fees that consist of transaction-based revenue, time-based revenue (service period), item-based revenue, or some other individual attribute-based revenue. Revenue is recognized when the performance obligation is completed, which is generally monthly for account maintenance services or when a transaction has been completed. Payment for such performance obligations is generally received at the time the performance obligations are satisfied. Other service charges and fees include interchange income from debit and credit card transaction fees. 
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| Advertising Cost [Policy Text Block] | Advertising Expenses 
 Advertising costs are generally expensed as incurred. The Company may establish accruals for incurred advertising expenses in the course of a fiscal year. 
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| Income Tax, Policy [Policy Text Block] | Income Taxes 
 Income tax expense is comprised of the current and deferred tax consequences of events and transactions already recognized. The Company includes interest and penalties related to income tax liabilities in income tax expense. The effective tax rate, income tax expense as a percent of pre-tax income, may vary significantly from statutory rates due to tax credits and permanent differences. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the tax bases of assets and liabilities and their carrying amounts for financial reporting purposes. Deferred tax assets and liabilities are adjusted through the provision for income taxes as changes in tax laws or rates are enacted. 
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| Earnings Per Share, Policy [Policy Text Block] | Per Share Results 
 Basic earnings per common share is calculated by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of potential common stock that could be issued by the Company. Under the treasury stock method of accounting, potential common stock may be issued for stock options, non-vested restricted stock awards, performance based stock awards, and convertible preferred stock. Diluted earnings per common share is calculated by dividing net income by the weighted average number of common shares outstanding for the period plus the number of dilutive potential common shares. The calculation of diluted earnings per common share excludes potential common shares that have an exercise price greater than the average market value of the Company’s common stock because the effect would be antidilutive. 
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| Risks and Uncertainties Policy [Policy Text Block] | Risks and Uncertainties 
 Recent COVID-19 Virus Developments – 
 During the last three years, government reaction to the novel coronavirus (“COVID-19”) pandemic significantly disrupted local, national, and global economies and adversely impacted a broad range of industries, including banking and other financial services. As COVID-19 events unfolded, the Company implemented various plans, strategies and protocols to protect its employees, maintain services for customers, assure the functional continuity of its operating systems, controls and processes, and mitigate financial risks posed by changing market conditions. 
 While direct impacts of COVID-19 appear to be declining and conditions have improved as of December 31, 2022, if there is a resurgence in the virus, the Company could experience adverse effects on its business, financial condition, results of operations and cash flows. While it is not possible to know the full extent that the impact of COVID-19, and any potential resulting measures to curtail its spread, will have on the Company's future operations, the Company's management believes its financial position, including high levels of capital and liquidity, will allow it to successfully endure the negative economic impacts of the pandemic. 
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| New Accounting Pronouncements, Policy [Policy Text Block] | Recent Accounting Standards 
 Standards Adopted 
 In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This ASU requires earlier recording of credit losses on loans and other financial assets held by financial institutions and other organizations. This ASU also requires an organization to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. It further requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, the ASU amends the accounting for credit losses in investments in debt securities and purchased financial assets with credit deterioration. The Company adopted the new standard as of January 1, 2021. The standard was applied using the modified retrospective method as a cumulative-effect adjustment to retained earnings as of January 1, 2021. Under this method, comparative periods will not be required to be restated for financial statements related to Topic 326. Comparative prior period disclosures will be presented using the guidance for the allowance for loan losses. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and the reasons for the change, which is solely a result of the adoption of the required standard. This standard did not have a material impact on our investment securities portfolio at implementation. Related to the implementation of the standard, the Company recorded an additional ACL for loans of $13.11 million, deferred tax assets of $1.81 million, and additional reserve for unfunded commitments of $509 thousand and an adjustment to retained earnings, net of tax, of $5.87 million. See the table below for the impact of ASU 2016-13 on the Company’s consolidated balance sheet. 
 
 
 
 
 
 Standards Not Yet Adopted 
 In March 2022, the Financial Accounting Standards Board issuedASU 2022-02, Financial Instruments-Credit Losses (Topic 326), Troubled Debt Restructurings and Vintage Disclosures. This new accounting topic provides accounting guidance for troubled debt restructuring ("TDR"), and write-offs, effective January 1, 2023, with early adoption permitted. The amendments eliminate TDR accounting guidance for issuers that have adopted ASU 2016-13, create a single loan modification accounting model, and clarify disclosure requirements for loan modifications and write-offs. We are currently reviewing the impact of the updated guidance on our Consolidated Financial Statements, but do no anticipate a material impact. The Company will adopt the standard, effective January 1, 2023. 
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| Accounting Standards Update and Change in Accounting Principle [Table Text Block] | 
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| Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] | 
 
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| Investments Classified by Contractual Maturity Date [Table Text Block] | 
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| Schedule of Unrealized Loss on Investments [Table Text Block] | 
 
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| Note 4 - Loans (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] | 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Note 5 - Credit Quality (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financing Receivable Credit Quality Indicators [Table Text Block] | 
 
 
 
 
 
 
 
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| Financing Receivable, Nonaccrual [Table Text Block] | 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financing Receivable, Past Due [Table Text Block] | 
 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Collateral Dependent Loans [Table Text Block] | 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trouble Debt Restructuring Accrual Status [Table Text Block] | 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Income Related to Troubled Debt Restructurings [Table Text Block] | 
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| Financing Receivable, Troubled Debt Restructuring [Table Text Block] | 
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| Other Real Estate Owned [Table Text Block] | 
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| Note 6 - Allowance for Credit Losses (Tables) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financing Receivable, Allowance for Credit Loss [Table Text Block] | 
 
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| Note 7 - Premises, Equipment, and Leases (Tables) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment [Table Text Block] | 
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| Lessee, Operating Lease, Liability, Maturity [Table Text Block] | 
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| Note 8 - Goodwill and Other Intangible Assets (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Finite-Lived Intangible Assets [Table Text Block] | 
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| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | 
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| Note 9 - Deposits (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Deposit Liabilities, Type [Table Text Block] | 
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| Time Deposit Maturities [Table Text Block] | 
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| Scheduled Maturities of Certificates of Deposits, Greater than 250,000 [Table Text Block] | 
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| Note 10 - Borrowings (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Debt [Table Text Block] | 
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| Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets [Table Text Block] | 
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| Note 11 - Derivative Instruments and Hedging Activities (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Derivative Instruments [Table Text Block] | 
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| Derivative Instruments, Gain (Loss) [Table Text Block] | 
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| Note 12 - Employee Benefit Plans (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Net Funded Status [Table Text Block] | 
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| Schedule of Net Benefit Costs [Table Text Block] | 
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| Schedule of Expected Benefit Payments [Table Text Block] | 
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| Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] | 
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| Share-Based Payment Arrangement, Option, Activity [Table Text Block] | 
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| Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] | 
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| Note 13 - Other Operating Income and Expense (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Other Operating Cost and Expense, by Component [Table Text Block] | 
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| Note 14 - Income Taxes (Tables) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] | 
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| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] | 
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| Schedule of Deferred Tax Assets and Liabilities [Table Text Block] | 
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| Note 15 - Accumulated Other Comprehensive Income (Tables) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | 
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| Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] | 
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| Note 16 - Fair Value (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | 
 
 
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| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | 
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| Fair Value Measurements, Nonrecurring [Table Text Block] | 
 
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| Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] | 
 
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| Fair Value, by Balance Sheet Grouping [Table Text Block] | 
 
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| Note 17 - Earnings Per Share (Tables) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | 
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| Note 18 - Related Party Transactions (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Related Party Transactions [Table Text Block] | 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Note 19 - Litigation, Commitments, and Contingencies (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] | 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Note 20 - Regulatory Requirements and Restrictions (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] | 
 
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| Note 21 - Parent Company Financial Information (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Condensed Balance Sheet [Table Text Block] | 
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| Condensed Income Statement [Table Text Block] | 
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| Condensed Cash Flow Statement [Table Text Block] | 
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| Note 23 - Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Quarterly Financial Information [Table Text Block] | 
 
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| Note 1 - Basis of Presentation and Significant Accounting Policies (Details Textual) | 12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 01, 2021  USD ($) | Dec. 31, 2022  USD ($) | Dec. 31, 2021  USD ($) | Dec. 31, 2020  USD ($) | |||||||||||||
| Number of Operating Segments | 1 | |||||||||||||||
| Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Total | $ 1,340,000 | |||||||||||||||
| Minimum Principal Balance of Loans for Quarterly Rating Review | 500,000 | |||||||||||||||
| Restructured Loans, Reserves | $ 500,000 | |||||||||||||||
| Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | [1] | $ 66,000 | ||||||||||||||
| Lessee, Operating Lease, Term of Contract (Year) | 10 years | |||||||||||||||
| Number of Reportable Segments | 1 | |||||||||||||||
| Goodwill, Impairment Loss | $ 0 | |||||||||||||||
| Financing Receivable, Allowance for Credit Loss, Ending Balance | 26,182,000 | [2] | 30,556,000 | $ 27,858,000 | [3] | $ 26,182,000 | ||||||||||
| Deferred Tax Assets, Net of Valuation Allowance, Total | 17,493,000 | [4] | 21,874,000 | 19,213,000 | ||||||||||||
| Retained Earnings (Accumulated Deficit), Ending Balance | 237,585,000 | [5] | 292,971,000 | 264,824,000 | [3] | |||||||||||
| Other Assets, Total | $ 103,673,000 | $ 106,691,000 | [3] | |||||||||||||
| Effective Income Tax Rate Reconciliation, Percent, Total | 22.43% | 23.09% | 22.09% | |||||||||||||
| Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||
| Financing Receivable, Allowance for Credit Loss, Ending Balance | $ 5,880,000 | |||||||||||||||
| Cumulative Effect, Period of Adoption, Adjustment [Member] | ||||||||||||||||
| Effective Income Tax Rate Reconciliation, Percent, Total | 23.37% | |||||||||||||||
| Accounting Standards Update 2016-13 [Member] | ||||||||||||||||
| Other Assets, Total | $ 57,000 | |||||||||||||||
| Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||
| Financing Receivable, Allowance for Credit Loss, Ending Balance | 57,000 | |||||||||||||||
| Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ||||||||||||||||
| Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | [1] | 509,000 | ||||||||||||||
| Financing Receivable, Allowance for Credit Loss, Ending Balance | 13,107,000 | [2] | $ 13,107,000 | |||||||||||||
| Deferred Tax Assets, Net of Valuation Allowance, Total | [4] | 1,813,000 | ||||||||||||||
| Retained Earnings (Accumulated Deficit), Ending Balance | [5] | $ (5,870,000) | ||||||||||||||
| Furniture and Fixtures [Member] | Minimum [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 5 years | |||||||||||||||
| Furniture and Fixtures [Member] | Maximum [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 10 years | |||||||||||||||
| Equipment, Computer Hardware and Software [Member] | Minimum [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 3 years | |||||||||||||||
| Equipment, Computer Hardware and Software [Member] | Maximum [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 5 years | |||||||||||||||
| Building and Building Improvements [Member] | Minimum [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 7 years | |||||||||||||||
| Building and Building Improvements [Member] | Maximum [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 40 years | |||||||||||||||
| Land and Land Improvements [Member] | ||||||||||||||||
| Property, Plant and Equipment, Useful Life (Year) | 20 years | |||||||||||||||
| Other Assets [Member] | ||||||||||||||||
| Equity Securities without Readily Determinable Fair Value, Amount | $ 3,780,000 | $ 3,850,000 | ||||||||||||||
| Other Liabilities [Member] | ||||||||||||||||
| Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 1,200,000 | |||||||||||||||
| Investment in Federal Home Loan Bank (FHLB) and Federal Reserve Bank (FRB) Stock [Member] | Other Assets [Member] | ||||||||||||||||
| Investment Owned, at Cost | $ 10,020,000.00 | $ 9,780,000 | ||||||||||||||
| 
 | ||||||||||||||||
| Note 1 - Basis of Presentation and Significant Accounting Policies - Impact of ASU 2016-13 (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | Dec. 31, 2020 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Securities available for sale, fair value | $ 300,349 | $ 76,292 | [1] | $ 83,358 | [2] | |||||||||||||||
| Loans | 2,400,197 | 2,165,569 | ||||||||||||||||||
| Allowance for credit losses on loans | (30,556) | (27,858) | [1] | (26,182) | [3] | $ (26,182) | ||||||||||||||
| Deferred Tax Assets, Net of Valuation Allowance, Total | 21,874 | 19,213 | 17,493 | [4] | ||||||||||||||||
| Accrued interest receivable - loans | 9,279 | 7,900 | [1] | 9,052 | [5] | |||||||||||||||
| Allowance for credit losses on off-balance sheet credit exposures | [6] | 66 | ||||||||||||||||||
| Retained Earnings (Accumulated Deficit), Ending Balance | $ 292,971 | $ 264,824 | [1] | 237,585 | [7] | |||||||||||||||
| Financial Asset, Other than Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Loans | 2,146,972 | |||||||||||||||||||
| Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Loans | [5] | 39,660 | ||||||||||||||||||
| Allowance for credit losses on loans | (5,880) | |||||||||||||||||||
| Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Allowance for credit losses on loans | (57) | |||||||||||||||||||
| Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | ||||||||||||||||||||
| Securities available for sale, fair value | [2] | 83,358 | ||||||||||||||||||
| Allowance for credit losses on loans | [3] | (39,289) | ||||||||||||||||||
| Deferred Tax Assets, Net of Valuation Allowance, Total | [4] | 19,306 | ||||||||||||||||||
| Accrued interest receivable - loans | [5] | 9,109 | ||||||||||||||||||
| Allowance for credit losses on off-balance sheet credit exposures | [6] | 575 | ||||||||||||||||||
| Retained Earnings (Accumulated Deficit), Ending Balance | [7] | 231,714 | ||||||||||||||||||
| Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Loans | 2,146,972 | |||||||||||||||||||
| Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Loans | [5] | 45,535 | ||||||||||||||||||
| Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | ||||||||||||||||||||
| Securities available for sale, fair value | [2] | 0 | ||||||||||||||||||
| Allowance for credit losses on loans | (13,107) | [3] | $ (13,107) | |||||||||||||||||
| Deferred Tax Assets, Net of Valuation Allowance, Total | [4] | 1,813 | ||||||||||||||||||
| Accrued interest receivable - loans | [5] | 57 | ||||||||||||||||||
| Allowance for credit losses on off-balance sheet credit exposures | [6] | 509 | ||||||||||||||||||
| Retained Earnings (Accumulated Deficit), Ending Balance | [7] | (5,870) | ||||||||||||||||||
| Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Loans | 0 | |||||||||||||||||||
| Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Financial Asset Acquired with Credit Deterioration [Member] | ||||||||||||||||||||
| Loans | [5] | $ 5,875 | ||||||||||||||||||
| 
 | ||||||||||||||||||||
| Note 2 - Acquisitions and Divestitures (Details Textual) - USD ($) $ in Thousands | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
| Sep. 16, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2023 | ||||
| Deposits, Total | $ 2,678,815 | $ 2,729,391 | [1] | |||||
| Interest-Bearing Domestic Deposit, Demand | 679,609 | 676,254 | ||||||
| Interest-Bearing Domestic Deposit, Savings | 578,974 | 561,576 | ||||||
| Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | 1,658 | 0 | $ 0 | |||||
| Assets, Total | $ 3,135,572 | $ 3,194,519 | [1] | |||||
| Forecast [Member] | Minimum [Member] | ||||||||
| Assets, Total | $ 3,600,000 | |||||||
| Disposal Group, Not Discontinued Operations [Member] | Emporia, Virginia Branch [Member] | Benchmark Community Bank [Member] | ||||||||
| Disposal Group, Proceeds From Real Estate and Property | $ 1,500 | |||||||
| Deposits, Total | 61,050 | |||||||
| Noninterest-Bearing Domestic Deposit, Demand | 18,380 | |||||||
| Interest-Bearing Domestic Deposit, Demand | 28,460 | |||||||
| Interest-Bearing Domestic Deposit, Savings | 11,520 | |||||||
| Interest-Bearing Domestic Deposit, Time Deposits, Total | 2,690 | |||||||
| Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | $ 1,660 | |||||||
| 
 | ||||||||
| Note 3 - Debt Securities (Details Textual) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2020  USD ($) | Dec. 31, 2022  USD ($) | Dec. 31, 2021  USD ($) | |
| Number of Securities in Unrealized Loss Position | 113 | 23 | |
| Percentage of Combined Depreciation of Combined Reported Value of Aggregate Securities Portfolio | 6.59% | 0.91% | |
| Debt Securities, Available-for-Sale, Realized Gain | $ 419 | ||
| Debt Securities, Available-for-Sale, Realized Loss | $ 34 | ||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | $ 320,123 | $ 76,273 | |
| US Government Agencies Debt Securities [Member] | |||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | 1,500 | 469 | |
| US Treasury Securities [Member] | |||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | 161,617 | ||
| US States and Political Subdivisions Debt Securities [Member] | |||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | 23,480 | 28,596 | |
| Corporate Debt Securities [Member] | |||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | 37,046 | 9,935 | |
| Mortgage-backed Agency Securities [Member] | |||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | 96,480 | 37,273 | |
| Asset Pledged as Collateral [Member] | |||
| Debt Securities, Available-for-Sale, Amortized Cost, Total | $ 22,430 | $ 22,150 | 
| Note 3 - Debt Securities - Securities Available-for-sale (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | [2] | |||||
|---|---|---|---|---|---|---|---|---|---|
| Securities available for sale, amortized cost | $ 320,123 | $ 76,273 | |||||||
| Securities available for sale, unrealized gains | 24 | 711 | |||||||
| Securities available for sale, unrealized losses | (19,798) | (692) | |||||||
| Securities available for sale, fair value | 300,349 | 76,292 | [1] | $ 83,358 | |||||
| US Government Agencies Debt Securities [Member] | |||||||||
| Securities available for sale, amortized cost | 1,500 | 469 | |||||||
| Securities available for sale, unrealized gains | 0 | 0 | |||||||
| Securities available for sale, unrealized losses | (15) | (3) | |||||||
| Securities available for sale, fair value | 1,485 | 466 | |||||||
| US Treasury Securities [Member] | |||||||||
| Securities available for sale, amortized cost | 161,617 | ||||||||
| Securities available for sale, unrealized gains | 0 | ||||||||
| Securities available for sale, unrealized losses | (4,353) | ||||||||
| Securities available for sale, fair value | 157,264 | ||||||||
| US States and Political Subdivisions Debt Securities [Member] | |||||||||
| Securities available for sale, amortized cost | 23,480 | 28,596 | |||||||
| Securities available for sale, unrealized gains | 21 | 198 | |||||||
| Securities available for sale, unrealized losses | (192) | 0 | |||||||
| Securities available for sale, fair value | 23,309 | 28,794 | |||||||
| Corporate Debt Securities [Member] | |||||||||
| Securities available for sale, amortized cost | 37,046 | 9,935 | |||||||
| Securities available for sale, unrealized gains | 0 | 0 | |||||||
| Securities available for sale, unrealized losses | (2,189) | (16) | |||||||
| Securities available for sale, fair value | 34,857 | 9,919 | |||||||
| Mortgage-backed Agency Securities [Member] | |||||||||
| Securities available for sale, amortized cost | 96,480 | 37,273 | |||||||
| Securities available for sale, unrealized gains | 3 | 513 | |||||||
| Securities available for sale, unrealized losses | (13,049) | (673) | |||||||
| Securities available for sale, fair value | $ 83,434 | $ 37,113 | |||||||
| 
 | |||||||||
| Note 3 - Debt Securities - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | [2] | |||||
|---|---|---|---|---|---|---|---|---|---|
| Securities available for sale, due within one year, amortized cost | $ 45,093 | ||||||||
| Securities available for sale, due after one year but within five years, amortized cost | 175,766 | ||||||||
| Securities available for sale, due after five years but within ten years, amortized cost | 2,784 | ||||||||
| Securities available for sale, due after ten years, amortized cost | 0 | ||||||||
| Securities available for sale, single maturity date, amortized cost | 223,643 | ||||||||
| Securities available for sale, no single maturity date, amortized cost | 96,480 | ||||||||
| Securities available for sale, amortized cost | 320,123 | $ 76,273 | |||||||
| Securities available for sale, due within one year, fair value | 44,787 | ||||||||
| Securities available for sale, due after one year but within five years, fair value | 169,354 | ||||||||
| Securities available for sale, due after five years but within ten years, fair value | 2,774 | ||||||||
| Securities available for sale, due after ten years, fair value | 0 | ||||||||
| Securities available for sale, single maturity date, fair value | 216,915 | ||||||||
| Securities available for sale, no single maturity date, fair value | 83,434 | ||||||||
| Securities available for sale | 300,349 | 76,292 | [1] | $ 83,358 | |||||
| US Government Agencies Debt Securities [Member] | |||||||||
| Securities available for sale, due within one year, amortized cost | 1,500 | ||||||||
| Securities available for sale, due after one year but within five years, amortized cost | 0 | ||||||||
| Securities available for sale, due after five years but within ten years, amortized cost | 0 | ||||||||
| Securities available for sale, due after ten years, amortized cost | 0 | ||||||||
| Securities available for sale, single maturity date, amortized cost | 1,500 | ||||||||
| Securities available for sale, amortized cost | 1,500 | 469 | |||||||
| Securities available for sale, due within one year, fair value | 1,485 | ||||||||
| Securities available for sale, due after one year but within five years, fair value | 0 | ||||||||
| Securities available for sale, due after five years but within ten years, fair value | 0 | ||||||||
| Securities available for sale, due after ten years, fair value | 0 | ||||||||
| Securities available for sale, single maturity date, fair value | 1,485 | ||||||||
| Securities available for sale | 1,485 | 466 | |||||||
| US Treasury Securities [Member] | |||||||||
| Securities available for sale, due within one year, amortized cost | 32,013 | ||||||||
| Securities available for sale, due after one year but within five years, amortized cost | 129,604 | ||||||||
| Securities available for sale, due after five years but within ten years, amortized cost | 0 | ||||||||
| Securities available for sale, due after ten years, amortized cost | 0 | ||||||||
| Securities available for sale, single maturity date, amortized cost | 161,617 | ||||||||
| Securities available for sale, amortized cost | 161,617 | ||||||||
| Securities available for sale, due within one year, fair value | 31,786 | ||||||||
| Securities available for sale, due after one year but within five years, fair value | 125,478 | ||||||||
| Securities available for sale, due after five years but within ten years, fair value | 0 | ||||||||
| Securities available for sale, due after ten years, fair value | 0 | ||||||||
| Securities available for sale, single maturity date, fair value | 157,264 | ||||||||
| Securities available for sale | 157,264 | ||||||||
| US States and Political Subdivisions Debt Securities [Member] | |||||||||
| Securities available for sale, due within one year, amortized cost | 3,070 | ||||||||
| Securities available for sale, due after one year but within five years, amortized cost | 17,626 | ||||||||
| Securities available for sale, due after five years but within ten years, amortized cost | 2,784 | ||||||||
| Securities available for sale, due after ten years, amortized cost | 0 | ||||||||
| Securities available for sale, single maturity date, amortized cost | 23,480 | ||||||||
| Securities available for sale, amortized cost | 23,480 | 28,596 | |||||||
| Securities available for sale, due within one year, fair value | 3,068 | ||||||||
| Securities available for sale, due after one year but within five years, fair value | 17,467 | ||||||||
| Securities available for sale, due after five years but within ten years, fair value | 2,774 | ||||||||
| Securities available for sale, due after ten years, fair value | 0 | ||||||||
| Securities available for sale, single maturity date, fair value | 23,309 | ||||||||
| Securities available for sale | 23,309 | 28,794 | |||||||
| Corporate Debt Securities [Member] | |||||||||
| Securities available for sale, due within one year, amortized cost | 8,510 | ||||||||
| Securities available for sale, due after one year but within five years, amortized cost | 28,536 | ||||||||
| Securities available for sale, due after five years but within ten years, amortized cost | 0 | ||||||||
| Securities available for sale, due after ten years, amortized cost | 0 | ||||||||
| Securities available for sale, single maturity date, amortized cost | 37,046 | ||||||||
| Securities available for sale, amortized cost | 37,046 | 9,935 | |||||||
| Securities available for sale, due within one year, fair value | 8,448 | ||||||||
| Securities available for sale, due after one year but within five years, fair value | 26,409 | ||||||||
| Securities available for sale, due after five years but within ten years, fair value | 0 | ||||||||
| Securities available for sale, due after ten years, fair value | 0 | ||||||||
| Securities available for sale, single maturity date, fair value | 34,857 | ||||||||
| Securities available for sale | $ 34,857 | $ 9,919 | |||||||
| 
 | |||||||||
| Note 3 - Debt Securities - Available For Sale Securities in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Securities available for sale, less than 12 months, fair value | $ 268,457 | $ 24,011 | 
| Securities available for sale, less than 12 months, unrealized losses | (15,556) | (269) | 
| Securities available for sale, 12 months or longer, fair value | 20,794 | 8,843 | 
| Securities available for sale, 12 months or longer, unrealized losses | (4,242) | (423) | 
| Securities available for sale, total fair value | 289,251 | 32,854 | 
| Securities available for sale, total unrealized losses | (19,798) | (692) | 
| US Government Agencies Debt Securities [Member] | ||
| Securities available for sale, less than 12 months, fair value | 1,485 | 0 | 
| Securities available for sale, less than 12 months, unrealized losses | (15) | 0 | 
| Securities available for sale, 12 months or longer, fair value | 0 | 459 | 
| Securities available for sale, 12 months or longer, unrealized losses | 0 | (3) | 
| Securities available for sale, total fair value | 1,485 | 459 | 
| Securities available for sale, total unrealized losses | (15) | (3) | 
| US Treasury Securities [Member] | ||
| Securities available for sale, less than 12 months, fair value | 157,264 | |
| Securities available for sale, less than 12 months, unrealized losses | (4,353) | |
| Securities available for sale, 12 months or longer, fair value | 0 | |
| Securities available for sale, 12 months or longer, unrealized losses | 0 | |
| Securities available for sale, total fair value | 157,264 | |
| Securities available for sale, total unrealized losses | (4,353) | |
| US States and Political Subdivisions Debt Securities [Member] | ||
| Securities available for sale, less than 12 months, fair value | 12,347 | 0 | 
| Securities available for sale, less than 12 months, unrealized losses | (192) | 0 | 
| Securities available for sale, 12 months or longer, fair value | 0 | 0 | 
| Securities available for sale, 12 months or longer, unrealized losses | 0 | 0 | 
| Securities available for sale, total fair value | 12,347 | 0 | 
| Securities available for sale, total unrealized losses | (192) | 0 | 
| Corporate Debt Securities [Member] | ||
| Securities available for sale, less than 12 months, fair value | 32,368 | 9,919 | 
| Securities available for sale, less than 12 months, unrealized losses | (2,172) | (16) | 
| Securities available for sale, 12 months or longer, fair value | 2,489 | 0 | 
| Securities available for sale, 12 months or longer, unrealized losses | (17) | 0 | 
| Securities available for sale, total fair value | 34,857 | 9,919 | 
| Securities available for sale, total unrealized losses | (2,189) | (16) | 
| Mortgage-backed Agency Securities [Member] | ||
| Securities available for sale, less than 12 months, fair value | 64,993 | 14,092 | 
| Securities available for sale, less than 12 months, unrealized losses | (8,824) | (253) | 
| Securities available for sale, 12 months or longer, fair value | 18,305 | 8,384 | 
| Securities available for sale, 12 months or longer, unrealized losses | (4,225) | (420) | 
| Securities available for sale, total fair value | 83,298 | 22,476 | 
| Securities available for sale, total unrealized losses | $ (13,049) | $ (673) | 
| Note 4 - Loans (Details Textual) - USD ($) $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | |
| Bank Overdrafts | $ 1,800 | $ 1,650 | 
| Deferred Loan Fees | 8,810 | 5,060 | 
| Financing Receivable, Unamortized Purchase Premium (Discount) | (3,800) | (5,410) | 
| Financing Receivable, Accrued Interest, after Allowance for Credit Loss | 7,940 | 7,540 | 
| Financing Receivable, before Allowance for Credit Loss, Total | 2,165,569 | |
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||
| Financing Receivable, before Allowance for Credit Loss, Total | 150,428 | 112,988 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Financing Receivable, before Allowance for Credit Loss, Total | 0 | 20,642 | 
| Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount), Total | 0 | 733 | 
| Amortization of Deferred Loan Origination Fees, Net | $ 733 | $ 2,740 | 
| Note 4 - Loans - Loans by Class (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Non-covered loans | $ 2,400,197 | $ 2,165,569 | 
| Non-covered loans, percent | 100.00% | 100.00% | 
| Commercial Portfolio Segment [Member] | ||
| Non-covered loans | $ 1,433,263 | $ 1,230,476 | 
| Non-covered loans, percent | 59.72% | 56.82% | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | $ 117,174 | $ 65,806 | 
| Non-covered loans, percent | 4.88% | 3.04% | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | $ 150,428 | $ 133,630 | 
| Non-covered loans, percent | 6.27% | 6.17% | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | $ 148,026 | $ 100,402 | 
| Non-covered loans, percent | 6.17% | 4.64% | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | $ 206,121 | $ 198,778 | 
| Non-covered loans, percent | 8.59% | 9.18% | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | $ 787,703 | $ 707,506 | 
| Non-covered loans, percent | 32.82% | 32.67% | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | ||
| Non-covered loans | $ 12,032 | $ 9,341 | 
| Non-covered loans, percent | 0.50% | 0.43% | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | ||
| Non-covered loans | $ 11,779 | $ 15,013 | 
| Non-covered loans, percent | 0.49% | 0.69% | 
| Consumer Real Estate Portfolio Segment [Member] | ||
| Non-covered loans | $ 820,548 | $ 800,631 | 
| Non-covered loans, percent | 34.19% | 36.97% | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | $ 75,642 | $ 79,857 | 
| Non-covered loans, percent | 3.15% | 3.69% | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | $ 734,540 | $ 703,864 | 
| Non-covered loans, percent | 30.61% | 32.50% | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | $ 10,366 | $ 16,910 | 
| Non-covered loans, percent | 0.43% | 0.78% | 
| Consumer and Other Portfolio Segment [Member] | ||
| Non-covered loans | $ 146,386 | $ 134,462 | 
| Non-covered loans, percent | 6.09% | 6.21% | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | ||
| Non-covered loans | $ 144,582 | $ 129,794 | 
| Non-covered loans, percent | 6.02% | 5.99% | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | ||
| Non-covered loans | $ 1,804 | $ 4,668 | 
| Non-covered loans, percent | 0.07% | 0.22% | 
| Note 5 - Credit Quality (Details Textual) - USD ($) $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | |
| Financing Receivable, Nonaccrual, Interest Income | $ 5 | $ 72 | 
| Performing Status Returned Period (Month) | 6 months | |
| Financing Receivable, Troubled Debt Restructuring, Subsequent Default | $ 0 | $ 0 | 
| Note 5 - Credit Quality - Loans by Credit Quality (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Non-covered loans | $ 2,400,197 | $ 2,165,569 | 
| Originated in current year | 636,803 | 574,234 | 
| Originated in one year prior | 519,052 | 474,346 | 
| Originated in two years prior | 391,570 | 172,629 | 
| Originated in three years prior | 130,861 | 132,380 | 
| Originated in four years prior | 96,385 | 120,130 | 
| Prior | 524,791 | 577,745 | 
| Revolving | 100,735 | 114,105 | 
| Total loan | 2,165,569 | |
| Total loans held for investment, net of unearned income | 2,400,197 | |
| Pass [Member] | ||
| Non-covered loans | 2,319,331 | 2,060,694 | 
| Originated in current year | 634,980 | 570,244 | 
| Originated in one year prior | 512,743 | 467,596 | 
| Originated in two years prior | 388,129 | 163,786 | 
| Originated in three years prior | 123,998 | 123,718 | 
| Originated in four years prior | 88,762 | 104,040 | 
| Prior | 471,459 | 520,187 | 
| Revolving | 99,260 | 111,123 | 
| Total loan | 2,060,694 | |
| Total loans held for investment, net of unearned income | 2,319,331 | |
| Special Mention [Member] | ||
| Non-covered loans | 25,802 | 35,342 | 
| Originated in current year | 227 | 1,060 | 
| Originated in one year prior | 2,695 | 4,197 | 
| Originated in two years prior | 977 | 2,373 | 
| Originated in three years prior | 1,929 | 3,424 | 
| Originated in four years prior | 3,471 | 9,360 | 
| Prior | 16,086 | 14,220 | 
| Revolving | 417 | 708 | 
| Total loan | 35,342 | |
| Total loans held for investment, net of unearned income | 25,802 | |
| Substandard [Member] | ||
| Non-covered loans | 55,064 | 69,523 | 
| Originated in current year | 1,596 | 2,930 | 
| Originated in one year prior | 3,614 | 2,553 | 
| Originated in two years prior | 2,464 | 6,470 | 
| Originated in three years prior | 4,934 | 5,238 | 
| Originated in four years prior | 4,152 | 6,730 | 
| Prior | 37,246 | 43,328 | 
| Revolving | 1,058 | 2,274 | 
| Total loan | 69,523 | |
| Total loans held for investment, net of unearned income | 55,064 | |
| Doubtful [Member] | ||
| Non-covered loans | 0 | 10 | 
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 10 | 
| Revolving | 0 | 0 | 
| Total loan | 10 | |
| Total loans held for investment, net of unearned income | 0 | |
| Unlikely to be Collected Financing Receivable [Member] | ||
| Non-covered loans | 0 | 0 | 
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Commercial Portfolio Segment [Member] | ||
| Non-covered loans | 1,433,263 | 1,230,476 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 117,174 | 65,806 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 150,428 | 133,630 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 148,026 | 100,402 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | 206,121 | 198,778 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 787,703 | 707,506 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | ||
| Non-covered loans | 12,032 | 9,341 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | ||
| Non-covered loans | 11,779 | 15,013 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 115,972 | 64,498 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 147,543 | 128,770 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 143,859 | 98,457 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | 195,775 | 186,184 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 761,154 | 665,559 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Agricultural [Member] | ||
| Non-covered loans | 11,722 | 8,758 | 
| Commercial Portfolio Segment [Member] | Pass [Member] | Farmland [Member] | ||
| Non-covered loans | 9,868 | 11,939 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 853 | 451 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 920 | 1,005 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 3,946 | 1,090 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | 2,303 | 3,607 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 14,903 | 25,624 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Agricultural [Member] | ||
| Non-covered loans | 47 | 70 | 
| Commercial Portfolio Segment [Member] | Special Mention [Member] | Farmland [Member] | ||
| Non-covered loans | 573 | 633 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 349 | 857 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 1,965 | 3,855 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 221 | 855 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | 8,043 | 8,977 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 11,646 | 16,323 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Agricultural [Member] | ||
| Non-covered loans | 263 | 513 | 
| Commercial Portfolio Segment [Member] | Substandard [Member] | Farmland [Member] | ||
| Non-covered loans | 1,338 | 2,441 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | 0 | 10 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Agricultural [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Doubtful [Member] | Farmland [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Agricultural [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Farmland [Member] | ||
| Non-covered loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered loans | 117,174 | 65,806 | 
| Originated in current year | 58,770 | 40,207 | 
| Originated in one year prior | 40,220 | 10,393 | 
| Originated in two years prior | 4,869 | 3,209 | 
| Originated in three years prior | 3,121 | 3,843 | 
| Originated in four years prior | 2,590 | 1,599 | 
| Prior | 6,142 | 6,165 | 
| Revolving | 1,462 | 390 | 
| Total loan | 117,174 | 65,806 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Pass [Member] | ||
| Originated in current year | 58,770 | 40,207 | 
| Originated in one year prior | 39,995 | 10,127 | 
| Originated in two years prior | 4,602 | 3,081 | 
| Originated in three years prior | 3,050 | 3,704 | 
| Originated in four years prior | 2,485 | 1,308 | 
| Prior | 5,608 | 5,717 | 
| Revolving | 1,462 | 354 | 
| Total loan | 115,972 | 64,498 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 225 | 266 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 128 | 
| Originated in four years prior | 94 | 0 | 
| Prior | 534 | 21 | 
| Revolving | 0 | 36 | 
| Total loan | 853 | 451 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Substandard [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 267 | 128 | 
| Originated in three years prior | 71 | 11 | 
| Originated in four years prior | 11 | 291 | 
| Prior | 0 | 427 | 
| Revolving | 0 | 0 | 
| Total loan | 349 | 857 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||
| Non-covered loans | 150,428 | 133,630 | 
| Originated in current year | 70,035 | 34,755 | 
| Originated in one year prior | 23,878 | 19,302 | 
| Originated in two years prior | 12,182 | 14,982 | 
| Originated in three years prior | 8,716 | 14,348 | 
| Originated in four years prior | 9,498 | 5,687 | 
| Prior | 9,688 | 6,756 | 
| Revolving | 16,431 | 17,158 | 
| Total loan | 150,428 | 112,988 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Originated in current year | 16,482 | |
| Originated in one year prior | 4,160 | |
| Originated in two years prior | 0 | |
| Originated in three years prior | 0 | |
| Originated in four years prior | 0 | |
| Prior | 0 | |
| Revolving | 0 | |
| Total loan | 0 | 20,642 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member] | ||
| Originated in current year | 69,678 | 34,539 | 
| Originated in one year prior | 23,746 | 18,887 | 
| Originated in two years prior | 12,047 | 13,679 | 
| Originated in three years prior | 7,729 | 13,772 | 
| Originated in four years prior | 9,121 | 4,817 | 
| Prior | 8,890 | 5,890 | 
| Revolving | 16,332 | 16,544 | 
| Total loan | 147,543 | 108,128 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Originated in current year | 45,261 | 16,482 | 
| Originated in one year prior | 20,881 | 4,160 | 
| Originated in two years prior | 31,087 | 0 | 
| Originated in three years prior | 3,733 | 0 | 
| Originated in four years prior | 1,328 | 0 | 
| Prior | 41,063 | 0 | 
| Revolving | 506 | 0 | 
| Total loan | 143,859 | 20,642 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member] | ||
| Originated in current year | 227 | 32 | 
| Originated in one year prior | 20 | 60 | 
| Originated in two years prior | 21 | 597 | 
| Originated in three years prior | 367 | 192 | 
| Originated in four years prior | 185 | 28 | 
| Prior | 1 | 0 | 
| Revolving | 99 | 96 | 
| Total loan | 920 | 1,005 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 3,946 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 3,946 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Substandard [Member] | ||
| Originated in current year | 130 | 184 | 
| Originated in one year prior | 112 | 355 | 
| Originated in two years prior | 114 | 706 | 
| Originated in three years prior | 620 | 384 | 
| Originated in four years prior | 192 | 842 | 
| Prior | 797 | 866 | 
| Revolving | 0 | 518 | 
| Total loan | 1,965 | 3,855 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Substandard [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 221 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 221 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Doubtful [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Unlikely to be Collected Financing Receivable [Member] | SBA CARES Act Paycheck Protection Program [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | ||
| Non-covered loans | 148,026 | 100,402 | 
| Originated in current year | 45,261 | 11,307 | 
| Originated in one year prior | 20,881 | 24,299 | 
| Originated in two years prior | 31,087 | 4,644 | 
| Originated in three years prior | 3,733 | 1,897 | 
| Originated in four years prior | 1,328 | 8,413 | 
| Prior | 45,230 | 48,907 | 
| Revolving | 506 | 935 | 
| Total loan | 148,026 | 100,402 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Pass [Member] | ||
| Originated in current year | 218,595 | 11,307 | 
| Originated in one year prior | 145,675 | 24,299 | 
| Originated in two years prior | 114,840 | 4,644 | 
| Originated in three years prior | 52,575 | 1,897 | 
| Originated in four years prior | 35,564 | 8,413 | 
| Prior | 185,448 | 46,962 | 
| Revolving | 8,457 | 935 | 
| Total loan | 761,154 | 98,457 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 1,927 | 0 | 
| Originated in two years prior | 852 | 0 | 
| Originated in three years prior | 1,193 | 0 | 
| Originated in four years prior | 2,708 | 0 | 
| Prior | 8,076 | 1,090 | 
| Revolving | 147 | 0 | 
| Total loan | 14,903 | 1,090 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Substandard [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 1,267 | 0 | 
| Originated in two years prior | 675 | 0 | 
| Originated in three years prior | 2,509 | 0 | 
| Originated in four years prior | 1,531 | 0 | 
| Prior | 5,664 | 855 | 
| Revolving | 0 | 0 | 
| Total loan | 11,646 | 855 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered loans | 787,703 | 707,506 | 
| Originated in current year | 218,595 | 149,536 | 
| Originated in one year prior | 148,869 | 150,426 | 
| Originated in two years prior | 116,367 | 65,982 | 
| Originated in three years prior | 56,277 | 56,069 | 
| Originated in four years prior | 39,803 | 56,198 | 
| Prior | 199,188 | 214,900 | 
| Revolving | 8,604 | 14,395 | 
| Total loan | 787,703 | 707,506 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Pass [Member] | ||
| Originated in current year | 6,244 | 147,978 | 
| Originated in one year prior | 3,225 | 146,381 | 
| Originated in two years prior | 1,003 | 62,651 | 
| Originated in three years prior | 376 | 50,943 | 
| Originated in four years prior | 154 | 43,776 | 
| Prior | 214 | 199,812 | 
| Revolving | 506 | 14,018 | 
| Total loan | 11,722 | 665,559 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 397 | 
| Originated in one year prior | 33 | 3,334 | 
| Originated in two years prior | 14 | 823 | 
| Originated in three years prior | 0 | 2,595 | 
| Originated in four years prior | 0 | 9,190 | 
| Prior | 0 | 9,135 | 
| Revolving | 0 | 150 | 
| Total loan | 47 | 25,624 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Substandard [Member] | ||
| Originated in current year | 124 | 1,161 | 
| Originated in one year prior | 37 | 711 | 
| Originated in two years prior | 1 | 2,508 | 
| Originated in three years prior | 66 | 2,531 | 
| Originated in four years prior | 24 | 3,232 | 
| Prior | 11 | 5,953 | 
| Revolving | 0 | 227 | 
| Total loan | 263 | 16,323 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | ||
| Non-covered loans | 12,032 | 9,341 | 
| Originated in current year | 6,368 | 4,651 | 
| Originated in one year prior | 3,295 | 1,586 | 
| Originated in two years prior | 1,018 | 1,280 | 
| Originated in three years prior | 442 | 573 | 
| Originated in four years prior | 178 | 363 | 
| Prior | 225 | 455 | 
| Revolving | 506 | 433 | 
| Total loan | 12,032 | 9,341 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Pass [Member] | ||
| Originated in current year | 646 | 4,564 | 
| Originated in one year prior | 713 | 1,548 | 
| Originated in two years prior | 796 | 998 | 
| Originated in three years prior | 77 | 534 | 
| Originated in four years prior | 869 | 346 | 
| Prior | 6,150 | 335 | 
| Revolving | 617 | 433 | 
| Total loan | 9,868 | 8,758 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 43 | 
| Originated in one year prior | 109 | 27 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 222 | 0 | 
| Prior | 242 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 573 | 70 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Substandard [Member] | ||
| Originated in current year | 0 | 44 | 
| Originated in one year prior | 0 | 11 | 
| Originated in two years prior | 12 | 282 | 
| Originated in three years prior | 0 | 39 | 
| Originated in four years prior | 253 | 17 | 
| Prior | 1,073 | 120 | 
| Revolving | 0 | 0 | 
| Total loan | 1,338 | 513 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | ||
| Non-covered loans | 11,779 | 15,013 | 
| Originated in current year | 646 | 617 | 
| Originated in one year prior | 822 | 1,061 | 
| Originated in two years prior | 808 | 601 | 
| Originated in three years prior | 77 | 1,614 | 
| Originated in four years prior | 1,344 | 1,156 | 
| Prior | 7,465 | 8,429 | 
| Revolving | 617 | 1,535 | 
| Total loan | 11,779 | 15,013 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Pass [Member] | ||
| Originated in current year | 428 | |
| Originated in one year prior | 1,047 | |
| Originated in two years prior | 82 | |
| Originated in three years prior | 1,125 | |
| Originated in four years prior | 887 | |
| Prior | 6,835 | |
| Revolving | 1,535 | |
| Total loan | 11,939 | |
| Commercial Portfolio Segment [Member] | Farmland [Member] | Special Mention [Member] | ||
| Originated in current year | 189 | |
| Originated in one year prior | 0 | |
| Originated in two years prior | 0 | |
| Originated in three years prior | 240 | |
| Originated in four years prior | 5 | |
| Prior | 199 | |
| Revolving | 0 | |
| Total loan | 633 | |
| Commercial Portfolio Segment [Member] | Farmland [Member] | Substandard [Member] | ||
| Originated in current year | 0 | |
| Originated in one year prior | 14 | |
| Originated in two years prior | 519 | |
| Originated in three years prior | 249 | |
| Originated in four years prior | 264 | |
| Prior | 1,395 | |
| Revolving | 0 | |
| Total loan | 2,441 | |
| Commercial Portfolio Segment [Member] | Farmland [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | |
| Originated in one year prior | 0 | |
| Originated in two years prior | 0 | |
| Originated in three years prior | 0 | |
| Originated in four years prior | 0 | |
| Prior | 0 | |
| Revolving | 0 | |
| Total loan | 0 | |
| Commercial Portfolio Segment [Member] | Farmland [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | |
| Originated in one year prior | 0 | |
| Originated in two years prior | 0 | |
| Originated in three years prior | 0 | |
| Originated in four years prior | 0 | |
| Prior | 0 | |
| Revolving | 0 | |
| Total loan | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | ||
| Non-covered loans | 820,548 | 800,631 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 75,642 | 79,857 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 734,540 | 703,864 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 10,366 | 16,910 | 
| Consumer Real Estate Portfolio Segment [Member] | Pass [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 72,927 | 76,259 | 
| Consumer Real Estate Portfolio Segment [Member] | Pass [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 706,952 | 671,459 | 
| Consumer Real Estate Portfolio Segment [Member] | Pass [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 10,204 | 16,629 | 
| Consumer Real Estate Portfolio Segment [Member] | Special Mention [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 288 | 426 | 
| Consumer Real Estate Portfolio Segment [Member] | Special Mention [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 1,958 | 2,420 | 
| Consumer Real Estate Portfolio Segment [Member] | Special Mention [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Substandard [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 2,427 | 3,172 | 
| Consumer Real Estate Portfolio Segment [Member] | Substandard [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 25,630 | 29,985 | 
| Consumer Real Estate Portfolio Segment [Member] | Substandard [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 162 | 281 | 
| Consumer Real Estate Portfolio Segment [Member] | Doubtful [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Doubtful [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Doubtful [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | ||
| Non-covered loans | 75,642 | 79,857 | 
| Originated in current year | 1,960 | 115 | 
| Originated in one year prior | 198 | 59 | 
| Originated in two years prior | 268 | 28 | 
| Originated in three years prior | 35 | 274 | 
| Originated in four years prior | 138 | 130 | 
| Prior | 8,799 | 3,484 | 
| Revolving | 64,244 | 75,767 | 
| Total loan | 79,857 | |
| Total loans held for investment, net of unearned income | 75,642 | |
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Pass [Member] | ||
| Originated in current year | 1,960 | 115 | 
| Originated in one year prior | 198 | 59 | 
| Originated in two years prior | 241 | 0 | 
| Originated in three years prior | 0 | 25 | 
| Originated in four years prior | 24 | 2 | 
| Prior | 7,429 | 2,168 | 
| Revolving | 63,075 | 73,890 | 
| Total loan | 76,259 | |
| Total loans held for investment, net of unearned income | 72,927 | |
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 117 | 0 | 
| Revolving | 171 | 426 | 
| Total loan | 426 | |
| Total loans held for investment, net of unearned income | 288 | |
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Substandard [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 27 | 28 | 
| Originated in three years prior | 35 | 249 | 
| Originated in four years prior | 114 | 128 | 
| Prior | 1,253 | 1,316 | 
| Revolving | 998 | 1,451 | 
| Total loan | 3,172 | |
| Total loans held for investment, net of unearned income | 2,427 | |
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered loans | 734,540 | 703,864 | 
| Originated in current year | 158,351 | 241,529 | 
| Originated in one year prior | 238,935 | 226,603 | 
| Originated in two years prior | 208,310 | 64,337 | 
| Originated in three years prior | 50,375 | 48,653 | 
| Originated in four years prior | 38,931 | 43,772 | 
| Prior | 245,386 | 276,559 | 
| Revolving | 373 | 1,189 | 
| Total loan | 902,642 | |
| Total loans held for investment, net of unearned income | 940,661 | |
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Pass [Member] | ||
| Originated in current year | 157,890 | 239,917 | 
| Originated in one year prior | 237,363 | 225,294 | 
| Originated in two years prior | 207,480 | 61,925 | 
| Originated in three years prior | 48,795 | 46,716 | 
| Originated in four years prior | 36,678 | 41,757 | 
| Prior | 214,148 | 240,845 | 
| Revolving | 373 | 1,189 | 
| Total loan | 857,643 | |
| Total loans held for investment, net of unearned income | 902,727 | |
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 399 | 
| Originated in one year prior | 376 | 510 | 
| Originated in two years prior | 90 | 937 | 
| Originated in three years prior | 363 | 269 | 
| Originated in four years prior | 262 | 137 | 
| Prior | 3,170 | 3,775 | 
| Revolving | 0 | 0 | 
| Total loan | 6,027 | |
| Total loans held for investment, net of unearned income | 4,261 | |
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Substandard [Member] | ||
| Originated in current year | 461 | 1,213 | 
| Originated in one year prior | 1,196 | 799 | 
| Originated in two years prior | 740 | 1,475 | 
| Originated in three years prior | 1,217 | 1,668 | 
| Originated in four years prior | 1,991 | 1,878 | 
| Prior | 28,068 | 31,929 | 
| Revolving | 0 | 0 | 
| Total loan | 38,962 | |
| Total loans held for investment, net of unearned income | 33,673 | |
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 10 | 
| Revolving | 0 | 0 | 
| Total loan | 10 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | ||
| Non-covered loans | 10,366 | 16,910 | 
| Originated in current year | 6,357 | 9,689 | 
| Originated in one year prior | 3,344 | 4,729 | 
| Originated in two years prior | 162 | 178 | 
| Originated in three years prior | 23 | 22 | 
| Originated in four years prior | 11 | 428 | 
| Prior | 469 | 1,864 | 
| Revolving | 0 | 0 | 
| Total loan | 16,910 | |
| Total loans held for investment, net of unearned income | 10,366 | |
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Pass [Member] | ||
| Originated in current year | 6,357 | 9,689 | 
| Originated in one year prior | 3,344 | 4,729 | 
| Originated in two years prior | 0 | 178 | 
| Originated in three years prior | 23 | 22 | 
| Originated in four years prior | 11 | 428 | 
| Prior | 469 | 1,583 | 
| Revolving | 0 | 0 | 
| Total loan | 16,629 | |
| Total loans held for investment, net of unearned income | 10,204 | |
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Substandard [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 162 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 281 | 
| Revolving | 0 | 0 | 
| Total loan | 281 | |
| Total loans held for investment, net of unearned income | 162 | |
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer and Other Portfolio Segment [Member] | ||
| Non-covered loans | 146,386 | 134,462 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 144,582 | 129,794 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | ||
| Non-covered loans | 1,804 | 4,668 | 
| Consumer and Other Portfolio Segment [Member] | Pass [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 141,551 | 127,514 | 
| Consumer and Other Portfolio Segment [Member] | Pass [Member] | Other Loan [Member] | ||
| Non-covered loans | 1,804 | 4,668 | 
| Consumer and Other Portfolio Segment [Member] | Special Mention [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 11 | 16 | 
| Consumer and Other Portfolio Segment [Member] | Special Mention [Member] | Other Loan [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Substandard [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 3,020 | 2,264 | 
| Consumer and Other Portfolio Segment [Member] | Substandard [Member] | Other Loan [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Doubtful [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Doubtful [Member] | Other Loan [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Other Loan [Member] | ||
| Non-covered loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | ||
| Non-covered loans | 144,582 | 129,794 | 
| Originated in current year | 70,460 | 65,346 | 
| Originated in one year prior | 38,610 | 31,728 | 
| Originated in two years prior | 16,499 | 17,388 | 
| Originated in three years prior | 8,062 | 5,087 | 
| Originated in four years prior | 2,564 | 2,384 | 
| Prior | 2,199 | 10,226 | 
| Revolving | 7,992 | 2,303 | 
| Total loan | 134,462 | |
| Total loans held for investment, net of unearned income | 146,386 | |
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Pass [Member] | ||
| Originated in current year | 69,579 | 65,018 | 
| Originated in one year prior | 37,603 | 31,065 | 
| Originated in two years prior | 16,033 | 16,548 | 
| Originated in three years prior | 7,640 | 4,980 | 
| Originated in four years prior | 2,528 | 2,306 | 
| Prior | 2,040 | 10,040 | 
| Revolving | 7,932 | 2,225 | 
| Total loan | 132,182 | |
| Total loans held for investment, net of unearned income | 143,355 | |
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Special Mention [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 5 | 0 | 
| Originated in two years prior | 0 | 16 | 
| Originated in three years prior | 6 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 16 | |
| Total loans held for investment, net of unearned income | 11 | |
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Substandard [Member] | ||
| Originated in current year | 881 | 328 | 
| Originated in one year prior | 1,002 | 663 | 
| Originated in two years prior | 466 | 824 | 
| Originated in three years prior | 416 | 107 | 
| Originated in four years prior | 36 | 78 | 
| Prior | 159 | 186 | 
| Revolving | 60 | 78 | 
| Total loan | 2,264 | |
| Total loans held for investment, net of unearned income | 3,020 | |
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Doubtful [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | 0 | |
| Total loans held for investment, net of unearned income | 0 | |
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | ||
| Originated in current year | 0 | 0 | 
| Originated in one year prior | 0 | 0 | 
| Originated in two years prior | 0 | 0 | 
| Originated in three years prior | 0 | 0 | 
| Originated in four years prior | 0 | 0 | 
| Prior | 0 | 0 | 
| Revolving | 0 | 0 | 
| Total loan | $ 0 | |
| Total loans held for investment, net of unearned income | $ 0 | 
| Note 5 - Credit Quality - Nonaccrual Loans by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Total nonaccrual loans | $ 15,208 | $ 20,768 | 
| Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 14,619 | 19,668 | 
| Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 589 | 1,100 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | ||
| Total nonaccrual loans | 31 | 409 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 31 | 409 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||
| Total nonaccrual loans | 438 | 1,734 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 438 | 1,734 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | ||
| Total nonaccrual loans | 220 | 208 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 220 | 208 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | ||
| Total nonaccrual loans | 984 | 2,304 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 984 | 2,304 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | ||
| Total nonaccrual loans | 1,771 | 4,539 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 1,771 | 3,439 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 1,100 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | ||
| Total nonaccrual loans | 9 | 136 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 9 | 136 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | ||
| Total nonaccrual loans | 133 | 222 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 133 | 222 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | ||
| Total nonaccrual loans | 400 | 767 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 400 | 767 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | ||
| Total nonaccrual loans | 8,817 | 8,957 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 8,228 | 8,957 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 589 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | ||
| Total nonaccrual loans | 2,405 | 1,492 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Loans With No Allowance [Member] | ||
| Total nonaccrual loans | 2,405 | 1,492 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Loans With an Allowance [Member] | ||
| Total nonaccrual loans | $ 0 | $ 0 | 
| Note 5 - Credit Quality - Aging of Past Due Loans by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Non-covered | $ 2,400,197 | $ 2,165,569 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | |
| Amortized Cost of > 90 Days Accruing No Allowance, Total | 0 | |
| Financial Asset, 30 to 59 Days Past Due [Member] | ||
| Non-covered | 13,573 | 11,434 | 
| Financial Asset, 60 to 89 Days Past Due [Member] | ||
| Non-covered | 4,843 | 5,220 | 
| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | ||
| Non-covered | 6,199 | 10,227 | 
| Financial Asset, Past Due [Member] | ||
| Non-covered | 24,615 | 26,881 | 
| Financial Asset, Not Past Due [Member] | ||
| Non-covered | 2,375,582 | 2,138,688 | 
| Commercial Portfolio Segment [Member] | ||
| Non-covered | 1,433,263 | 1,230,476 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | ||
| Non-covered | 117,174 | 65,806 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 393 | 52 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 8 | 0 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 23 | 120 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 424 | 172 | 
| Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 116,750 | 65,634 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||
| Non-covered | 150,428 | 133,630 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 756 | 325 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 129 | 35 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 217 | 1,394 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 1,102 | 1,754 | 
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 149,326 | 131,876 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | ||
| Non-covered | 148,026 | 100,402 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 97 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 83 | 0 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 83 | 97 | 
| Commercial Portfolio Segment [Member] | Multi-family Residential [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 147,943 | 100,305 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | ||
| Non-covered | 206,121 | 198,778 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 990 | 1,210 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 122 | 583 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 299 | 795 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 1,411 | 2,588 | 
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 204,710 | 196,190 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | ||
| Non-covered | 787,703 | 707,506 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 646 | 1,002 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 52 | 441 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 548 | 2,333 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 1,246 | 3,776 | 
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 786,457 | 703,730 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | ||
| Non-covered | 12,032 | 9,341 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 36 | 73 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 135 | 7 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 9 | 101 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 180 | 181 | 
| Commercial Portfolio Segment [Member] | Agricultural [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 11,852 | 9,160 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | ||
| Non-covered | 11,779 | 15,013 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 52 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 133 | 222 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 133 | 274 | 
| Commercial Portfolio Segment [Member] | Farmland [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 11,646 | 14,739 | 
| Consumer Real Estate Portfolio Segment [Member] | ||
| Non-covered | 820,548 | 800,631 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | ||
| Non-covered | 75,642 | 79,857 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 519 | 275 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 115 | 388 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 262 | 333 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 896 | 996 | 
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 74,746 | 78,861 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | ||
| Non-covered | 734,540 | 703,864 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 5,951 | 4,740 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 2,322 | 2,584 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 3,166 | 3,880 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 11,439 | 11,204 | 
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 723,101 | 692,660 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | ||
| Non-covered | 10,366 | 16,910 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 139 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 139 | 
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 10,366 | 16,771 | 
| Consumer and Other Portfolio Segment [Member] | ||
| Non-covered | 146,386 | 134,462 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | ||
| Non-covered | 144,582 | 129,794 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 4,282 | 3,469 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 1,960 | 1,182 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 1,459 | 1,049 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 7,701 | 5,700 | 
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 136,881 | 124,094 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | ||
| Non-covered | 1,804 | 4,668 | 
| Amortized Cost of > 90 Days Accruing No Allowance, Non-covered | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | Financial Asset, Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | 0 | 0 | 
| Consumer and Other Portfolio Segment [Member] | Other Loan [Member] | Financial Asset, Not Past Due [Member] | Non-covered Loans [Member] | ||
| Non-covered | $ 1,804 | $ 4,668 | 
| Note 5 - Credit Quality - Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Collateral dependent loans | $ 589 | $ 2,216 | 
| Collateral coverage | $ 574 | $ 2,312 | 
| Collateral coverage percentage | 97.45% | 104.33% | 
| Commercial Real Estate, Hotel 1 [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Commercial Real Estate, Office [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Commercial Real Estate, Other [Member] | ||
| Collateral dependent loans | $ 0 | $ 2,216 | 
| Collateral coverage | $ 0 | $ 2,312 | 
| Collateral coverage percentage | 0.00% | 104.33% | 
| Commercial Real Estate, Retail [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Multi-family, Industrial [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Multi-family, Office [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Multi-family, Other [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Commercial and Industrial, Industrial [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Commercial and Industrial, Other [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Consumer Owner Occupied, Other [Member] | ||
| Collateral dependent loans | $ 0 | $ 0 | 
| Collateral coverage | $ 0 | $ 0 | 
| Collateral coverage percentage | 0.00% | 0.00% | 
| Consumer, Other [Member] | ||
| Collateral dependent loans | $ 589 | $ 0 | 
| Collateral coverage | $ 574 | $ 0 | 
| Collateral coverage percentage | 97.45% | 0.00% | 
| Note 5 - Credit Quality - Loans Modified as Troubled Debt Restructurings by Loan Class and Accrual Status (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | ||
|---|---|---|---|---|
| Nonaccrual | [1] | $ 1,324 | $ 2,519 | |
| Accrual | 7,112 | 8,652 | ||
| TDRs | 8,436 | 11,171 | ||
| Allowance for credit losses related to TDRs | 0 | 0 | ||
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | ||||
| Nonaccrual | [1] | 0 | 396 | |
| Accrual | 374 | 470 | ||
| TDRs | 374 | 866 | ||
| Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] | ||||
| Nonaccrual | [1] | 142 | 857 | |
| Accrual | 838 | 1,100 | ||
| TDRs | 980 | 1,957 | ||
| Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] | ||||
| Nonaccrual | [1] | 0 | 0 | |
| Accrual | 747 | 2,021 | ||
| TDRs | 747 | 2,021 | ||
| Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] | ||||
| Nonaccrual | [1] | 0 | 0 | |
| Accrual | 55 | 67 | ||
| TDRs | 55 | 67 | ||
| Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] | ||||
| Nonaccrual | [1] | 1,182 | 1,266 | |
| Accrual | 5,073 | 4,755 | ||
| TDRs | 6,255 | 6,021 | ||
| Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] | ||||
| Nonaccrual | [1] | 0 | 0 | |
| Accrual | 0 | 212 | ||
| TDRs | 0 | 212 | ||
| Consumer and Other Portfolio Segment [Member] | ||||
| TDRs | 27 | |||
| Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] | ||||
| Nonaccrual | [1] | 0 | 0 | |
| Accrual | 25 | $ 27 | ||
| TDRs | $ 25 | |||
| 
 | ||||
| Note 5 - Credit Quality - Balance and Interest Income Related to Impaired Loan Pools (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Troubled Debt Restructurings [Member] | Purchased Credit Impaired Loans [Member] | |||
| Interest income recognized | $ 383 | $ 422 | $ 473 | 
| Note 5 - Credit Quality - Loans Modified as Troubled Debt Restructurings (Details) $ in Thousands | 12 Months Ended | |||
|---|---|---|---|---|
| Dec. 31, 2022  USD ($) | Dec. 31, 2021  USD ($) | |||
| Total contracts | 6 | 7 | ||
| Pre-modification recorded investment | $ 525 | $ 1,361 | ||
| Post-modification recorded investment | [1] | $ 513 | $ 1,361 | |
| Below Market Interest Rate [Member] | Single Family Owner Occupied [Member] | ||||
| Total contracts | 1 | 0 | ||
| Pre-modification recorded investment | $ 31 | $ 0 | ||
| Post-modification recorded investment | [1] | $ 32 | $ 0 | |
| Below Market Interest Rate and Extended Payment Term [Member] | ||||
| Total contracts | 0 | 5 | ||
| Pre-modification recorded investment | $ 0 | $ 567 | ||
| Post-modification recorded investment | [1] | $ 0 | $ 567 | |
| Below Market Interest Rate and Extended Payment Term [Member] | Single Family Owner Occupied [Member] | ||||
| Total contracts | 0 | 4 | ||
| Pre-modification recorded investment | $ 0 | $ 402 | ||
| Post-modification recorded investment | [1] | $ 0 | $ 402 | |
| Below Market Interest Rate and Extended Payment Term [Member] | Single Family Non-owner Occupied [Member] | ||||
| Total contracts | 0 | 1 | ||
| Pre-modification recorded investment | $ 0 | $ 165 | ||
| Post-modification recorded investment | [1] | $ 0 | $ 165 | |
| Payment Deferral [Member] | ||||
| Total contracts | 5 | 2 | ||
| Pre-modification recorded investment | $ 494 | $ 794 | ||
| Post-modification recorded investment | [1] | $ 481 | $ 794 | |
| Payment Deferral [Member] | Single Family Owner Occupied [Member] | ||||
| Total contracts | 5 | 1 | ||
| Pre-modification recorded investment | $ 494 | $ 41 | ||
| Post-modification recorded investment | $ 481 | $ 41 | ||
| Payment Deferral [Member] | Single Family Non-owner Occupied [Member] | ||||
| Total contracts | 0 | 1 | ||
| Pre-modification recorded investment | $ 0 | $ 753 | ||
| Post-modification recorded investment | [1] | $ 0 | $ 753 | |
| 
 | ||||
| Note 5 - Credit Quality - Other Real Estate Owned (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | ||
|---|---|---|---|---|
| Total OREO | $ 703 | $ 1,015 | ||
| OREO secured by residential real estate | 407 | 337 | ||
| Residential real estate loans in the foreclosure process(1) | [1] | $ 1,474 | $ 2,210 | |
| 
 | ||||
| Note 6 - Allowance for Credit Losses - Changes in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |||||||
| Balance | $ 27,858 | [1] | $ 26,182 | $ 27,858 | [1] | $ 26,182 | |||||||||||
| Provision for (recovery of) credit losses charged to operations | $ 3,416 | $ 685 | $ 510 | 1,961 | $ (846) | $ (1,394) | $ (2,230) | (4,001) | 6,572 | (8,471) | $ 12,668 | ||||||
| Charge-offs | (7,803) | (6,774) | |||||||||||||||
| Recoveries | 3,929 | 3,814 | |||||||||||||||
| Net (charge-offs) recoveries | (3,874) | (2,960) | |||||||||||||||
| Balance | 30,556 | 27,858 | [1] | 30,556 | 27,858 | [1] | 26,182 | ||||||||||
| Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | |||||||||||||||||
| Balance | 13,107 | 13,107 | |||||||||||||||
| Balance | 13,107 | ||||||||||||||||
| Commercial Portfolio Segment [Member] | |||||||||||||||||
| Balance | 14,775 | 14,661 | 14,775 | 14,661 | |||||||||||||
| Provision for (recovery of) credit losses charged to operations | 431 | (6,949) | |||||||||||||||
| Charge-offs | (633) | (3,431) | |||||||||||||||
| Recoveries | 2,640 | 2,134 | |||||||||||||||
| Net (charge-offs) recoveries | 2,007 | (1,297) | |||||||||||||||
| Balance | 17,213 | 14,775 | 17,213 | 14,775 | 14,661 | ||||||||||||
| Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | |||||||||||||||||
| Balance | 8,360 | 8,360 | |||||||||||||||
| Balance | 8,360 | ||||||||||||||||
| Consumer Real Estate Portfolio Segment [Member] | |||||||||||||||||
| Balance | 9,972 | 8,951 | 9,972 | 8,951 | |||||||||||||
| Provision for (recovery of) credit losses charged to operations | (1,121) | (3,653) | |||||||||||||||
| Charge-offs | (427) | (318) | |||||||||||||||
| Recoveries | 507 | 847 | |||||||||||||||
| Net (charge-offs) recoveries | 80 | 529 | |||||||||||||||
| Balance | 8,931 | 9,972 | 8,931 | 9,972 | 8,951 | ||||||||||||
| Consumer Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | |||||||||||||||||
| Balance | 4,145 | 4,145 | |||||||||||||||
| Balance | 4,145 | ||||||||||||||||
| Consumer and Other Portfolio Segment [Member] | |||||||||||||||||
| Balance | $ 3,111 | 2,570 | 3,111 | 2,570 | |||||||||||||
| Provision for (recovery of) credit losses charged to operations | 7,262 | 2,131 | |||||||||||||||
| Charge-offs | (6,743) | (3,025) | |||||||||||||||
| Recoveries | 782 | 833 | |||||||||||||||
| Net (charge-offs) recoveries | (5,961) | (2,192) | |||||||||||||||
| Balance | $ 4,412 | $ 3,111 | $ 4,412 | 3,111 | 2,570 | ||||||||||||
| Consumer and Other Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | |||||||||||||||||
| Balance | $ 602 | $ 602 | |||||||||||||||
| Balance | $ 602 | ||||||||||||||||
| 
 | |||||||||||||||||
| Note 7 - Premises, Equipment, and Leases (Details Textual) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Impairment of Long-Lived Assets to be Disposed of | $ 0 | $ 781 | $ 812 | 
| Depreciation, Depletion and Amortization, Total | $ 4,150 | $ 4,470 | 4,460 | 
| Operating Lease, Weighted Average Discount Rate, Percent | 3.28% | 3.22% | |
| Operating Lease, Expense | $ 175 | $ 182 | $ 180 | 
| Minimum [Member] | |||
| Lessee, Operating Lease, Remaining Lease Term (Year) | 2 years | 4 months | |
| Maximum [Member] | |||
| Lessee, Operating Lease, Remaining Lease Term (Year) | 6 years 6 months | 7 years 6 months | |
| Other Assets [Member] | |||
| Operating Lease, Right-of-Use Asset | $ 648 | $ 741 | |
| Other Liabilities [Member] | |||
| Operating Lease, Liability, Total | $ 670 | $ 770 | |
| Note 7 - Premises, Equipment, and Leases - Components of Premises and Equipment (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | |||
|---|---|---|---|---|---|
| Land | $ 19,460 | $ 20,402 | |||
| Buildings and leasehold improvements | 47,009 | 48,118 | |||
| Equipment | 40,552 | 40,501 | |||
| Total premises and equipment | 107,021 | 109,021 | |||
| Accumulated depreciation and amortization | (59,681) | (56,737) | |||
| Total premises and equipment, net | $ 47,340 | $ 52,284 | [1] | ||
| 
 | |||||
| Note 7 - Premises, Equipment, and Leases - Minimum Lease Payments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| 2023 | $ 119 | |
| 2024 | 117 | |
| 2025 | 101 | |
| 2026 | 101 | |
| 2027 and thereafter | 261 | |
| Total lease payments | 699 | |
| Less: Interest | (29) | |
| Other Liabilities [Member] | ||
| Operating Lease, Liability, Total | $ 670 | $ 770 | 
| Note 8 - Goodwill and Other Intangible Assets (Details Textual) $ in Thousands | 12 Months Ended | |||||
|---|---|---|---|---|---|---|
| Dec. 31, 2022  USD ($) | Dec. 31, 2021  USD ($) | Dec. 31, 2020  USD ($) | ||||
| Number of Reportable Segments | 1 | |||||
| Goodwill, Ending Balance | $ 129,565 | $ 129,565 | [1] | $ 129,570 | ||
| Amortization of Intangible Assets | $ 1,446 | $ 1,446 | $ 1,450 | |||
| Core Deposits [Member] | ||||||
| Finite-Lived Intangible Assets, Remaining Amortization Period (Year) | 5 years 10 months 13 days | |||||
| Core Deposits [Member] | Minimum [Member] | ||||||
| Finite-Lived Intangible Asset, Useful Life (Year) | 2 years 6 months | |||||
| Core Deposits [Member] | Maximum [Member] | ||||||
| Finite-Lived Intangible Asset, Useful Life (Year) | 7 years | |||||
| 
 | ||||||
| Note 8 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets, by Reporting Unit (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |||
|---|---|---|---|---|---|---|
| Other intangible assets | $ 4,176 | $ 5,622 | [1] | |||
| Community Banking [Member] | ||||||
| Other intangible assets | 5,622 | $ 7,069 | ||||
| Core Deposits [Member] | ||||||
| Finite-lived intangible assets, gross | 12,674 | |||||
| Accumulated amortization | $ (8,498) | |||||
| Core Deposits [Member] | Community Banking [Member] | ||||||
| Finite-lived intangible assets, gross | 12,674 | 12,674 | ||||
| Accumulated amortization | $ (7,052) | $ (5,605) | ||||
| 
 | ||||||
| Note 8 - Goodwill and Other Intangible Assets - Estimated Amortization Expense for Intangible Assets, by Year (Details) $ in Thousands | Dec. 31, 2022  USD ($) | 
|---|---|
| 2023 | $ 878 | 
| 2024 | 856 | 
| 2025 | 647 | 
| 2026 | 449 | 
| 2027 | 449 | 
| 2028 and thereafter | 897 | 
| Total estimated amortization expense | $ 4,176 | 
| Note 9 - Deposits (Details Textual) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Time Deposits, at or Above FDIC Insurance Limit | $ 15,214 | $ 27,140 | 
| Note 9 - Deposits - Components of Deposits (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | |||
|---|---|---|---|---|---|
| Noninterest-bearing demand deposits | $ 872,168 | $ 842,783 | |||
| Interest-bearing demand deposits | 679,609 | 676,254 | |||
| Money market accounts | 264,734 | 293,915 | |||
| Savings deposits | 578,974 | 561,576 | |||
| Certificates of deposit | 180,008 | 237,919 | |||
| Individual retirement accounts | 103,322 | 116,944 | |||
| Total interest-bearing deposits | 1,806,647 | 1,886,608 | |||
| Total deposits | $ 2,678,815 | $ 2,729,391 | [1] | ||
| 
 | |||||
| Note 9 - Deposits - Scheduled Maturities of Time Deposits (Details) $ in Thousands | Dec. 31, 2022  USD ($) | 
|---|---|
| 2023 | $ 161,250 | 
| 2024 | 50,680 | 
| 2025 | 30,246 | 
| 2026 | 18,010 | 
| 2027 | 18,191 | 
| 2028 and thereafter | 4,953 | 
| Total contractual maturities | $ 283,330 | 
| Note 9 - Deposits - Scheduled Maturities of Certificates of Deposit of $250 Thousand or More (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Three months or less | $ 2,406 | |
| Over three through six months | 1,160 | |
| Over six through twelve months | 3,754 | |
| Over twelve months | 7,894 | |
| Total contractual maturities | $ 15,214 | $ 27,140 | 
| Note 10 - Borrowings (Details Textual) $ in Thousands | Dec. 31, 2022  USD ($) | 
|---|---|
| Debt Instrument, Unused Borrowing Capacity, Amount | $ 405,810 | 
| Deposit Liabilities, Collateral Issued, Financial Instruments | 116,280 | 
| Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | $ 731,430 | 
| Note 10 - Borrowings - Components of Borrowings (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | |||
|---|---|---|---|---|---|
| Securities sold under agreements to repurchase | $ 1,874 | $ 1,536 | [1] | ||
| Retail Repurchase Agreements [Member] | |||||
| Securities sold under agreements to repurchase | $ 1,874 | $ 1,536 | |||
| Retail repurchase agreements | 0.07% | 0.07% | |||
| 
 | |||||
| Note 10 - Borrowings - Contractual Maturities of Repurchase Agreements (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | [1] | ||
|---|---|---|---|---|---|
| Repurchase agreements | $ 1,874 | $ 1,536 | |||
| Maturity Overnight and Continuous [Member] | |||||
| Repurchase agreements | 1,874 | ||||
| Maturity Less than 30 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| Maturity 30 to 90 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| Maturity Greater than 90 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| US States and Political Subdivisions Debt Securities [Member] | |||||
| Repurchase agreements | 453 | ||||
| US States and Political Subdivisions Debt Securities [Member] | Maturity Overnight and Continuous [Member] | |||||
| Repurchase agreements | 453 | ||||
| US States and Political Subdivisions Debt Securities [Member] | Maturity Less than 30 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| US States and Political Subdivisions Debt Securities [Member] | Maturity 30 to 90 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| US States and Political Subdivisions Debt Securities [Member] | Maturity Greater than 90 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| Mortgage-backed Agency Securities [Member] | |||||
| Repurchase agreements | 1,421 | ||||
| Mortgage-backed Agency Securities [Member] | Maturity Overnight and Continuous [Member] | |||||
| Repurchase agreements | 1,421 | ||||
| Mortgage-backed Agency Securities [Member] | Maturity Less than 30 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| Mortgage-backed Agency Securities [Member] | Maturity 30 to 90 Days [Member] | |||||
| Repurchase agreements | 0 | ||||
| Mortgage-backed Agency Securities [Member] | Maturity Greater than 90 Days [Member] | |||||
| Repurchase agreements | $ 0 | ||||
| 
 | |||||
| Note 11 - Derivative Instruments and Hedging Activities (Details Textual) $ in Millions | Jul. 26, 2022  USD ($) | 
|---|---|
| Interest Rate Swap [Member] | |
| Derivative, Gain (Loss) on Derivative, Net, Total | $ (72) | 
| Note 11 - Derivative Instruments and Hedging Activities - Notional or Contractual Amounts and Fair Values of Derivative Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Notional or contractual amount | $ 3,983 | $ 12,278 | 
| Derivative assets | 199 | 0 | 
| Derivative liabilities | 0 | 837 | 
| Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | ||
| Notional or contractual amount | 3,983 | 4,388 | 
| Derivative assets | 199 | 0 | 
| Derivative liabilities | 0 | 229 | 
| Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] | ||
| Notional or contractual amount | 0 | 7,890 | 
| Derivative assets | 0 | 0 | 
| Derivative liabilities | $ 0 | $ 608 | 
| Note 11 - Derivative Instruments and Hedging Activities - Effect of Derivative and Hedging Activity, on Consolidated Statements of Income (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands | 12 Months Ended | |||
|---|---|---|---|---|
| Jul. 26, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Derivative expense | $ (72,000) | |||
| Interest and Fees on Loans [Member] | ||||
| Derivative expense | $ 125 | $ 328 | $ 320 | |
| Designated as Hedging Instrument [Member] | Interest and Fees on Loans [Member] | ||||
| Derivative expense | 35 | 111 | 85 | |
| Not Designated as Hedging Instrument [Member] | Interest and Fees on Loans [Member] | ||||
| Derivative expense | $ 90 | $ 217 | $ 235 | |
| Note 12 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Deferred Compensation Arrangement with Individual, Recorded Liability | $ 0 | $ 0 | |
| Deferred Compensation Arrangement with Individual, Compensation Expense | 0 | 0 | $ 0 | 
| Deferred Compensation Plan Assets | 5,140 | 5,250 | |
| Stop-loss Insurance Liability for Individual Claims | 200 | ||
| Stop-loss Insurance Liability for Aggregate Claims | 5,140 | ||
| Other Postretirement Benefits Cost (Reversal of Cost) | $ 4,040 | $ 3,980 | $ 4,170 | 
| Common Stock, Shares Held in Employee Trust, Shares (in shares) | 309,019 | 320,164 | 351,222 | 
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) | 0 | ||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares) | 7,575 | 39,995 | |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value | $ 83 | $ 628 | |
| Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount | $ 427 | ||
| Share-Based Payment Arrangement, Option [Member] | |||
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 1 year 3 months | ||
| Restricted Stock [Member] | |||
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 2 years 3 days | ||
| Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ 1,410 | ||
| 2012 Omnibus Incentive Compensation Plan [Member] | Share-Based Payment Arrangement, Option [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) | 600,000 | ||
| Share-based Compensation Arrangement By Share-based Payment Award, Maximum Exercise Period (Year) | 10 years | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) | 4 years | ||
| 2012 Omnibus Incentive Compensation Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche One [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 25.00% | ||
| Supplemental Employee Retirement Plan [Member] | |||
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 35.00% | ||
| Defined Benefit Plan, Employee Contribution, Age | 62 | ||
| Directors' Plan [Member] | |||
| Defined Benefit Plan, Employee Contribution, Age | 70 | ||
| Defined Contribution Plan, Maximum Employee Contribution as Percentage of Base Salary | 100.00% | ||
| 401 (k) Savings Plan [Member] | |||
| Defined Benefit Plan, Employer Matching Contributions | $ 1,820 | $ 1,710 | $ 1,510 | 
| Note 12 - Employee Benefit Plans - Schedule of Changes in Aggregate Actuarial Benefit Obligation (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Beginning balance | $ 11,458 | $ 12,579 | |
| Effect of curtailment | 0 | 289 | |
| Service cost | 0 | 352 | $ 310 | 
| Interest cost | 332 | 315 | 355 | 
| Actuarial gain | (1,718) | (1,472) | |
| Benefits paid | (584) | (605) | |
| Ending balance | $ 9,488 | $ 11,458 | $ 12,579 | 
| Note 12 - Employee Benefit Plans - Components of Net Periodic Pension Cost and Assumed Discount Rate (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Service cost | $ 0 | $ 352 | $ 310 | 
| Interest cost | 332 | 315 | 355 | 
| Effect of curtailment | 0 | 289 | 0 | 
| Amortization of prior service cost | 0 | 124 | 201 | 
| Amortization of losses | 135 | 264 | 186 | 
| Net periodic cost | $ 467 | $ 1,344 | $ 1,052 | 
| Assumed discount rate | 4.96% | 2.88% | 2.53% | 
| Note 12 - Employee Benefit Plans - Projected Benefit Payments (Details) $ in Thousands | Dec. 31, 2022  USD ($) | 
|---|---|
| 2025 | $ 736 | 
| 2026 | 836 | 
| 2027 | 816 | 
| Supplemental Employee Retirement Plan [Member] | |
| 2023 | 697 | 
| 2024 | 741 | 
| 2028 through 2032 | $ 3,496 | 
| Note 12 - Employee Benefit Plans - Pre-tax Compensation Expense and Excess Tax Benefit Recognized in Earnings (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Pre-tax compensation expense | $ 718 | $ 1,282 | $ 1,643 | 
| Excess tax (benefit) expense | $ 0 | $ (633) | $ 202 | 
| Note 12 - Employee Benefit Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | |
| Options outstanding at beginning of period (in shares) | 204,878 | |
| Options outstanding at beginning of period (in dollars per share) | $ 29.35 | |
| Granted (in shares) | 0 | |
| Granted (in dollars per share) | $ 0 | |
| Exercised (in shares) | (7,575) | (39,995) | 
| Exercised (in dollars per share) | $ 22.63 | |
| Canceled/Expired (in shares) | 0 | |
| Canceled/Expired (in dollars per share) | $ 0 | |
| Options outstanding at end of period (in shares) | 197,303 | 204,878 | 
| Options outstanding at end of period (in dollars per share) | $ 29.61 | $ 29.35 | 
| Options outstanding at end of period (Year) | 6 years 8 months 8 days | |
| Options outstanding at end of period | $ 847 | |
| Options exercisable at end of period (in shares) | 109,833 | |
| Options exercisable at end of period (in dollars per share) | $ 26.90 | |
| Options exercisable at end of period (Year) | 5 years 5 months 23 days | |
| Options exercisable at end of period | $ 769 | |
| Note 12 - Employee Benefit Plans - Restricted Stock Activity (Details) - Restricted Stock [Member] | 12 Months Ended | 
|---|---|
| Dec. 31, 2022  $ / shares  shares | |
| Nonvested shares at beginning of period (in shares) | shares | 45,656 | 
| Nonvested shares at beginning of period (in dollars per share) | $ / shares | $ 24.03 | 
| Granted (in shares) | shares | 55,839 | 
| Granted (in dollars per share) | $ / shares | $ 27.97 | 
| Vested (in shares) | shares | (27,414) | 
| Vested (in dollars per share) | $ / shares | $ 25.79 | 
| Canceled (in shares) | shares | (476) | 
| Canceled (in dollars per share) | $ / shares | $ 22.89 | 
| Nonvested shares at end of period (in shares) | shares | 73,605 | 
| Nonvested shares at end of period (in dollars per share) | $ / shares | $ 30.87 | 
| Note 13 - Other Operating Income and Expense (Details Textual) | 12 Months Ended | 
|---|---|
| Dec. 31, 2022 | |
| Percentage of Operating Income | 1.00% | 
| Note 13 - Other Operating Income and Expense - Components of Other Operating Income and Expense (Details) - USD ($) $ in Thousands | 12 Months Ended | ||||
|---|---|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |||
| Bank owned life insurance | $ 961 | $ 1,183 | $ 814 | ||
| Net FDIC indemnification asset amortization | 0 | (1,226) | (1,690) | ||
| Other(1) | [1] | 4,187 | 4,623 | 3,555 | |
| Total other operating income | 5,148 | 4,580 | 2,679 | ||
| OREO expense and net loss | 557 | 330 | 414 | ||
| Telephone and data communications | 1,658 | 1,720 | 2,188 | ||
| Office supplies | 494 | 553 | 660 | ||
| Other(1) | [1] | 7,766 | 9,134 | 9,148 | |
| Total other operating expense | $ 10,475 | $ 11,737 | $ 12,410 | ||
| 
 | |||||
| Note 14 - Income Taxes (Details Textual) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | $ 0 | $ 0 | 
| Deferred Tax Assets, Valuation Allowance | $ 0 | $ 0 | 
| Note 14 - Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Federal | $ 9,883 | $ 8,546 | $ 10,048 | ||||||||
| State | 1,648 | 1,563 | 1,643 | ||||||||
| Total current tax expense | 11,531 | 10,109 | 11,691 | ||||||||
| Federal | 1,800 | 4,677 | (1,266) | ||||||||
| State | 164 | 574 | (239) | ||||||||
| Total deferred tax expense (benefit) | 1,964 | 5,251 | (1,505) | ||||||||
| Total income tax expense | $ 3,076 | $ 4,111 | $ 3,423 | $ 2,885 | $ 3,037 | $ 3,816 | $ 4,077 | $ 4,430 | $ 13,495 | $ 15,360 | $ 10,186 | 
| Note 14 - Income Taxes - Reconciliation of Statutory Federal Tax Rate and Effective Tax Rate From Continuing Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Federal income tax at the statutory rate, amount | $ 12,633 | $ 13,971 | $ 9,683 | ||||||||
| Federal income tax at the statutory rate | 21.00% | 21.00% | 21.00% | ||||||||
| State income tax, net of federal benefit, amount | $ 1,432 | $ 2,076 | $ 1,109 | ||||||||
| State income tax, net of federal benefit | 2.38% | 3.12% | 3.12% | ||||||||
| Total effective income tax rate reconciliation, amount | $ 14,065 | $ 16,047 | $ 10,792 | ||||||||
| Total effective income tax rate reconciliation | 23.38% | 24.12% | 24.12% | ||||||||
| Tax-exempt interest income, amount | $ (347) | $ (340) | $ (500) | ||||||||
| Tax-exempt interest income | (0.58%) | (0.51%) | (1.08%) | ||||||||
| Excess tax benefits | $ (24) | $ (133) | $ 42 | ||||||||
| Excess tax benefits | (0.04%) | (0.20%) | 0.09% | ||||||||
| Bank owned life insurance, amount | $ (68) | $ (225) | $ (139) | ||||||||
| Bank owned life insurance | (0.11%) | (0.34%) | (0.30%) | ||||||||
| Other items, net, amount | $ (131) | $ 11 | $ (9) | ||||||||
| Other items, net | (0.22%) | 0.02% | (0.74%) | ||||||||
| Total income tax expense | $ 3,076 | $ 4,111 | $ 3,423 | $ 2,885 | $ 3,037 | $ 3,816 | $ 4,077 | $ 4,430 | $ 13,495 | $ 15,360 | $ 10,186 | 
| Income tax at the effective tax rate | 22.43% | 23.09% | 22.09% | ||||||||
| Note 14 - Income Taxes - Significant Components of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | [1] | ||
|---|---|---|---|---|---|---|
| Allowance for loan losses | $ 7,283 | $ 6,647 | ||||
| Unrealized losses on available-for-sale securities | 4,153 | 0 | ||||
| Unrealized asset losses | 503 | 482 | ||||
| Purchase accounting | 148 | 455 | ||||
| FDIC assisted transactions | 588 | 810 | ||||
| Deferred loan fees | 2,074 | 2,350 | ||||
| Deferred compensation assets | 5,035 | 5,634 | ||||
| Federal net operating loss carryforward | 1,223 | 2,179 | ||||
| Lease liability | 160 | 184 | ||||
| Other | 707 | 472 | ||||
| Total deferred tax assets | 21,874 | 19,213 | $ 17,493 | |||
| Fixed assets | (755) | (1,046) | ||||
| Intangible assets | (857) | (318) | ||||
| Odd days interest deferral | (4,010) | (3,324) | ||||
| Unrealized gains on available for sale securities | 0 | (4) | ||||
| Right of use asset | (155) | (177) | ||||
| Other | (197) | (192) | ||||
| Total deferred tax liabilities | (5,974) | (5,061) | ||||
| Net deferred tax asset | $ 15,900 | $ 14,152 | ||||
| 
 | ||||||
| Note 15 - Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($) $ in Thousands | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |||||
| Balance | $ 427,775 | [1] | $ 426,730 | $ 428,819 | |||
| Other comprehensive (loss) income, net | (14,173) | 377 | (417) | ||||
| Balance | 421,985 | 427,775 | [1] | 426,730 | |||
| AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] | |||||||
| Balance | 15 | 1,106 | 866 | ||||
| Other comprehensive (loss) income before reclassifications | (15,636) | (1,091) | 544 | ||||
| Reclassified from AOCI | 0 | 0 | (304) | ||||
| Other comprehensive (loss) income, net | (15,636) | (1,091) | 240 | ||||
| Balance | (15,621) | 15 | 1,106 | ||||
| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | |||||||
| Balance | (1,561) | (3,029) | (2,372) | ||||
| Other comprehensive (loss) income before reclassifications | 1,357 | 1,160 | (961) | ||||
| Reclassified from AOCI | 106 | 308 | 304 | ||||
| Other comprehensive (loss) income, net | 1,463 | 1,468 | (657) | ||||
| Balance | (98) | (1,561) | (3,029) | ||||
| AOCI Attributable to Parent [Member] | |||||||
| Balance | (1,546) | (1,923) | (1,506) | ||||
| Other comprehensive (loss) income before reclassifications | (14,279) | 69 | (417) | ||||
| Reclassified from AOCI | 106 | 308 | 0 | ||||
| Other comprehensive (loss) income, net | (14,173) | 377 | (417) | ||||
| Balance | $ (15,719) | $ (1,546) | $ (1,923) | ||||
| 
 | |||||||
| Note 15 - Accumulated Other Comprehensive Income - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| (Losses) gains recognized | $ 0 | $ 0 | $ 385 | ||||||||
| Income before income taxes | $ 15,659 | $ 17,462 | $ 14,636 | $ 12,400 | $ 13,592 | $ 16,424 | $ 17,480 | $ 19,032 | 60,157 | 66,528 | 46,112 | 
| Income tax benefit | 3,076 | 4,111 | 3,423 | 2,885 | 3,037 | 3,816 | 4,077 | 4,430 | 13,495 | 15,360 | 10,186 | 
| Net income | $ 12,583 | $ 13,351 | $ 11,213 | $ 9,515 | $ 10,555 | $ 12,608 | $ 13,403 | $ 14,602 | 46,662 | 51,168 | 35,926 | 
| Reclassification out of Accumulated Other Comprehensive Income [Member] | |||||||||||
| (Losses) gains recognized | 0 | 0 | (385) | ||||||||
| Income tax benefit | 0 | 0 | 81 | ||||||||
| Net income | 106 | 308 | 0 | ||||||||
| Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] | |||||||||||
| Income before income taxes | 0 | 0 | (385) | ||||||||
| Income tax benefit | (29) | (80) | (82) | ||||||||
| Net income | 0 | 0 | (304) | ||||||||
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] | |||||||||||
| Other operating expense | 0 | 124 | 201 | ||||||||
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] | |||||||||||
| Other operating expense | 135 | 264 | 185 | ||||||||
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | |||||||||||
| Income before income taxes | 135 | 388 | 386 | ||||||||
| Net income | $ 106 | $ 308 | $ 304 | ||||||||
| Note 16 - Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | [2] | |||||
|---|---|---|---|---|---|---|---|---|---|
| Securities available for sale | $ 300,349 | $ 76,292 | [1] | $ 83,358 | |||||
| Derivative assets | 199 | 0 | |||||||
| Derivative liabilities | 0 | 837 | |||||||
| Fair Value, Recurring [Member] | |||||||||
| Securities available for sale | 300,349 | 76,292 | |||||||
| Equity securities | 55 | 55 | |||||||
| Fair value loans | 3,784 | 13,106 | |||||||
| Derivative assets | 199 | ||||||||
| Deferred compensation assets | 5,142 | 5,245 | |||||||
| Deferred compensation liabilities | 5,142 | 5,245 | |||||||
| Derivative liabilities | 837 | ||||||||
| Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Equity securities | 0 | 0 | |||||||
| Fair value loans | 0 | 0 | |||||||
| Derivative assets | 0 | ||||||||
| Deferred compensation assets | 5,142 | 5,245 | |||||||
| Deferred compensation liabilities | 5,142 | 5,245 | |||||||
| Derivative liabilities | 0 | ||||||||
| Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
| Securities available for sale | 300,349 | 76,292 | |||||||
| Equity securities | 55 | 55 | |||||||
| Fair value loans | 0 | 0 | |||||||
| Derivative assets | 199 | ||||||||
| Deferred compensation assets | 0 | 0 | |||||||
| Deferred compensation liabilities | 0 | 0 | |||||||
| Derivative liabilities | 837 | ||||||||
| Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Equity securities | 0 | 0 | |||||||
| Fair value loans | 3,784 | 13,106 | |||||||
| Derivative assets | 0 | ||||||||
| Deferred compensation assets | 0 | 0 | |||||||
| Deferred compensation liabilities | 0 | 0 | |||||||
| Derivative liabilities | 0 | ||||||||
| Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | |||||||||
| Securities available for sale | 1,485 | 466 | |||||||
| Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
| Securities available for sale | 1,485 | 466 | |||||||
| Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | US Treasury Securities [Member] | |||||||||
| Securities available for sale | 157,264 | ||||||||
| Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
| Securities available for sale | 0 | ||||||||
| Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
| Securities available for sale | 157,264 | ||||||||
| Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
| Securities available for sale | 0 | ||||||||
| Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | |||||||||
| Securities available for sale | 23,309 | 28,794 | |||||||
| Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
| Securities available for sale | 23,309 | 28,794 | |||||||
| Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | |||||||||
| Securities available for sale | 34,857 | 9,919 | |||||||
| Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
| Securities available for sale | 34,857 | 9,919 | |||||||
| Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | |||||||||
| Securities available for sale | 83,434 | 37,113 | |||||||
| Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
| Securities available for sale | 0 | 0 | |||||||
| Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
| Securities available for sale | 83,434 | 37,113 | |||||||
| Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
| Securities available for sale | $ 0 | $ 0 | |||||||
| 
 | |||||||||
| Note 16 - Fair Value - Changes in Level 3 Fair Value Measurements (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | |
| Balance | $ 13,106 | $ 17,831 | 
| Changes in fair value | (428) | (303) | 
| Changes due to principal reduction | (405) | (4,422) | 
| Change due to termination of interest rate swaps not qualifying as fair value hedges | (8,489) | |
| Balance | $ 3,784 | $ 13,106 | 
| Note 16 - Fair Value - Assets Measured at Fair Value on Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - Non-covered Loans [Member] - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Collateral Dependent Assets With Specific Reserves [Member] | ||
| Total Fair Value | $ 574 | $ 2,312 | 
| Collateral Dependent Assets With Specific Reserves [Member] | Fair Value, Inputs, Level 1 [Member] | ||
| Total Fair Value | 0 | 0 | 
| Collateral Dependent Assets With Specific Reserves [Member] | Fair Value, Inputs, Level 2 [Member] | ||
| Total Fair Value | 0 | 0 | 
| Collateral Dependent Assets With Specific Reserves [Member] | Fair Value, Inputs, Level 3 [Member] | ||
| Total Fair Value | 574 | 2,312 | 
| OREO [Member] | ||
| Total Fair Value | 703 | 1,015 | 
| OREO [Member] | Fair Value, Inputs, Level 1 [Member] | ||
| Total Fair Value | 0 | 0 | 
| OREO [Member] | Fair Value, Inputs, Level 2 [Member] | ||
| Total Fair Value | 0 | 0 | 
| OREO [Member] | Fair Value, Inputs, Level 3 [Member] | ||
| Total Fair Value | $ 703 | $ 1,015 | 
| Note 16 - Fair Value - Quantitative Information for Assets Measured at Fair Value on Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - Measurement Input, Discount Rate [Member] - Valuation, Market Approach [Member] | Dec. 31, 2022 | Dec. 31, 2021 | ||||
|---|---|---|---|---|---|---|
| Minimum [Member] | ||||||
| Collateral dependent assets with specific reserves | [1],[2] | 0.03 | 0 | |||
| OREO | [1],[2] | 0.20 | 0 | |||
| Maximum [Member] | ||||||
| Collateral dependent assets with specific reserves | [1],[2] | 0.03 | 0.11 | |||
| OREO | [1],[2] | 1 | 0.87 | |||
| Weighted Average [Member] | ||||||
| Collateral dependent assets with specific reserves | [1],[2] | 0.03 | 0.06 | |||
| OREO | [1],[2] | 0.69 | 0.32 | |||
| 
 | ||||||
| Note 16 - Fair Value - Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Debt securities available for sale | $ 300,349 | $ 76,292 | [1] | $ 83,358 | [2] | ||||||
| Interest receivable | 9,279 | 7,900 | [1] | $ 9,052 | [3] | ||||||
| Derivative assets | 199 | 0 | |||||||||
| Derivative liabilities | 0 | 837 | |||||||||
| Reported Value Measurement [Member] | |||||||||||
| Cash and cash equivalents | 170,846 | 677,439 | |||||||||
| Debt securities available for sale | 300,349 | 76,292 | |||||||||
| Equity securities | 55 | 55 | |||||||||
| Loans held for investment, net of allowance | 2,369,641 | 2,137,711 | |||||||||
| Interest receivable | 9,279 | 7,900 | |||||||||
| Deferred compensation assets | 5,142 | 5,245 | |||||||||
| Derivative assets | 199 | ||||||||||
| Securities sold under agreements to repurchase | 1,874 | 1,536 | |||||||||
| Interest payable | 159 | 314 | |||||||||
| Deferred compensation liabilities | 5,142 | 5,245 | |||||||||
| Derivative liabilities | 837 | ||||||||||
| Reported Value Measurement [Member] | Bank Time Deposits [Member] | |||||||||||
| Deposits fair value | 283,330 | 354,863 | |||||||||
| Estimate of Fair Value Measurement [Member] | |||||||||||
| Cash and cash equivalents | 170,846 | 677,439 | |||||||||
| Debt securities available for sale | 300,349 | 76,292 | |||||||||
| Equity securities | 55 | 55 | |||||||||
| Loans held for investment, net of allowance | 2,215,243 | 2,108,513 | |||||||||
| Interest receivable | 9,279 | 7,900 | |||||||||
| Deferred compensation assets | 5,142 | 5,245 | |||||||||
| Derivative assets | 199 | ||||||||||
| Securities sold under agreements to repurchase | 1,874 | 1,536 | |||||||||
| Interest payable | 159 | 314 | |||||||||
| Deferred compensation liabilities | 5,142 | 5,245 | |||||||||
| Derivative liabilities | 837 | ||||||||||
| Estimate of Fair Value Measurement [Member] | Bank Time Deposits [Member] | |||||||||||
| Deposits fair value | 281,744 | 352,000 | |||||||||
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||||
| Cash and cash equivalents | 170,846 | 677,439 | |||||||||
| Debt securities available for sale | 0 | 0 | |||||||||
| Equity securities | 0 | 0 | |||||||||
| Loans held for investment, net of allowance | 0 | 0 | |||||||||
| Interest receivable | 0 | 0 | |||||||||
| Deferred compensation assets | 5,142 | 5,245 | |||||||||
| Derivative assets | 0 | ||||||||||
| Securities sold under agreements to repurchase | 0 | 0 | |||||||||
| Interest payable | 0 | 0 | |||||||||
| Deferred compensation liabilities | 5,142 | 5,245 | |||||||||
| Derivative liabilities | 0 | ||||||||||
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Bank Time Deposits [Member] | |||||||||||
| Deposits fair value | 0 | 0 | |||||||||
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||||
| Cash and cash equivalents | 0 | 0 | |||||||||
| Debt securities available for sale | 300,349 | 76,292 | |||||||||
| Equity securities | 55 | 55 | |||||||||
| Loans held for investment, net of allowance | 0 | 0 | |||||||||
| Interest receivable | 9,279 | 7,900 | |||||||||
| Deferred compensation assets | 0 | 0 | |||||||||
| Derivative assets | 199 | ||||||||||
| Securities sold under agreements to repurchase | 1,874 | 1,536 | |||||||||
| Interest payable | 159 | 314 | |||||||||
| Deferred compensation liabilities | 0 | 0 | |||||||||
| Derivative liabilities | 837 | ||||||||||
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Bank Time Deposits [Member] | |||||||||||
| Deposits fair value | 281,744 | 352,000 | |||||||||
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||||
| Cash and cash equivalents | 0 | 0 | |||||||||
| Debt securities available for sale | 0 | 0 | |||||||||
| Equity securities | 0 | 0 | |||||||||
| Loans held for investment, net of allowance | 2,215,243 | 2,108,513 | |||||||||
| Interest receivable | 0 | 0 | |||||||||
| Deferred compensation assets | 0 | 0 | |||||||||
| Derivative assets | 0 | ||||||||||
| Securities sold under agreements to repurchase | 0 | 0 | |||||||||
| Interest payable | 0 | 0 | |||||||||
| Deferred compensation liabilities | 0 | 0 | |||||||||
| Derivative liabilities | 0 | ||||||||||
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Bank Time Deposits [Member] | |||||||||||
| Deposits fair value | $ 0 | $ 0 | |||||||||
| 
 | |||||||||||
| Note 17 - Earnings Per Share - Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Net income | $ 12,583 | $ 13,351 | $ 11,213 | $ 9,515 | $ 10,555 | $ 12,608 | $ 13,403 | $ 14,602 | $ 46,662 | $ 51,168 | $ 35,926 | 
| Weighted average common shares outstanding, basic (in shares) | 16,229,289 | 16,378,022 | 16,662,817 | 16,817,284 | 16,974,005 | 17,221,244 | 17,486,182 | 17,669,937 | 16,519,848 | 17,335,615 | 17,781,748 | 
| Total dilutive effect of potential common shares (in shares) | 42,409 | 67,321 | 33,632 | ||||||||
| Weighted average common shares outstanding, diluted (in shares) | 16,281,922 | 16,413,202 | 16,682,615 | 16,864,515 | 17,038,980 | 17,279,576 | 17,536,144 | 17,729,185 | 16,562,257 | 17,402,936 | 17,815,380 | 
| Basic earnings per common share (in dollars per share) | $ 0.78 | $ 0.82 | $ 0.67 | $ 0.57 | $ 0.62 | $ 0.73 | $ 0.77 | $ 0.83 | $ 2.82 | $ 2.95 | $ 2.02 | 
| Diluted earnings per common share (in dollars per share) | $ 0.77 | $ 0.81 | $ 0.67 | $ 0.56 | $ 0.62 | $ 0.73 | $ 0.76 | $ 0.82 | $ 2.82 | $ 2.94 | $ 2.02 | 
| Antidilutive potential common shares (in shares) | 131,198 | 104,150 | 85,066 | ||||||||
| Share-Based Payment Arrangement, Option [Member] | |||||||||||
| Dilutive effect of potential common shares (in shares) | 18,784 | 30,854 | 22,495 | ||||||||
| Antidilutive potential common shares (in shares) | 131,198 | 103,520 | 58,166 | ||||||||
| Restricted Stock [Member] | |||||||||||
| Dilutive effect of potential common shares (in shares) | 23,625 | 36,467 | 11,137 | ||||||||
| Antidilutive potential common shares (in shares) | 0 | 630 | 26,900 | ||||||||
| Note 18 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Related Party Deposit Liabilities | $ 14,590 | $ 11,920 | |
| Related Party Transaction, Expenses from Transactions with Related Party | 41 | 80 | $ 70 | 
| Operating Lease, Expense | 175 | 182 | 180 | 
| Due to Other Related Parties | 53 | 104 | 68 | 
| Related Parties [Member] | |||
| Operating Lease, Expense | $ 0 | $ 0 | $ 0 | 
| Note 18 - Related Party Transactions - Changes in Loans With Related Parties (Details) - USD ($) $ in Thousands | 12 Months Ended | |||
|---|---|---|---|---|
| Dec. 31, 2022 | Dec. 31, 2021 | |||
| Beginning balance | $ 33,740 | $ 20,166 | ||
| New loans and advances | 7,768 | 4,476 | ||
| Loan repayments | (15,979) | (4,139) | ||
| Reclassifications | [1] | 5,452 | 13,237 | |
| Ending balance | $ 30,981 | $ 33,740 | ||
| 
 | ||||
| Note 19 - Litigation, Commitments, and Contingencies - Off-balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | ||
|---|---|---|---|---|
| Commitments to extend credit | $ 278,926 | $ 272,447 | ||
| Standby letters of credit and financial guarantees(1) | [1] | 119,681 | 153,717 | |
| Total off-balance sheet risk | $ 398,607 | $ 426,164 | ||
| 
 | ||||
| Note 20 - Regulatory Requirements and Restrictions (Details Textual) | Jan. 01, 2019 | 
|---|---|
| Capital Conservation Buffer | 2.50% | 
| Note 20 - Regulatory Requirements and Restrictions - Company's and Bank's Capital Ratios (Details) $ in Thousands | Dec. 31, 2022  USD ($) | Dec. 31, 2021  USD ($) | ||
|---|---|---|---|---|
| Common equity Tier 1 ratio, actual amount | $ 303,963 | $ 294,207 | ||
| Common equity Tier 1, actual ratio | 0.1337 | 0.1439 | ||
| Common equity Tier 1 ratio, required amount | $ 102,332 | $ 91,983 | ||
| Common equity Tier 1, required ratio | 4.50% | 4.50% | ||
| Tier 1 risk-based capital ratio, actual amount | $ 303,963 | $ 294,207 | ||
| Tier 1 risk-based capital, actual ratio | 0.1337 | 0.1439 | ||
| Tier 1 risk-based capital ratio, required amount | $ 136,443 | $ 122,644 | ||
| Tier 1 risk-based capital, required ratio | 0.0600 | 0.0600 | ||
| Total risk-based capital ratio, actual amount | $ 332,430 | $ 319,795 | ||
| Total risk-based capital, actual ratio | 0.1462 | 0.1565 | ||
| Total risk-based capital ratio, required amount | $ 181,924 | $ 163,525 | ||
| Total risk-based capital, required ratio | 0.0800 | 0.0800 | ||
| Tier 1 Leverage ratio, actual amount | $ 303,963 | $ 294,207 | ||
| Tier 1 Leverage, actual ratio | 0.1017 | 0.0965 | ||
| Tier 1 Leverage ratio, required amount | $ 119,499 | $ 121,892 | ||
| Tier 1 Leverage, required ratio | 0.0400 | 0.0400 | ||
| First Community Bank [Member] | ||||
| Common equity Tier 1 ratio, actual amount | $ 264,185 | $ 271,806 | ||
| Common equity Tier 1, actual ratio | 0.1169 | 0.1337 | ||
| Common equity Tier 1 ratio, required amount | $ 101,712 | $ 91,499 | ||
| Common equity Tier 1, required ratio | 4.50% | 4.50% | ||
| Tier 1 risk-based capital ratio, actual amount | $ 264,185 | $ 271,806 | ||
| Tier 1 risk-based capital, actual ratio | 0.1169 | 0.1337 | ||
| Tier 1 risk-based capital ratio, required amount | $ 135,616 | $ 121,999 | ||
| Tier 1 risk-based capital, required ratio | 0.0600 | 0.0600 | ||
| Total risk-based capital ratio, actual amount | $ 292,481 | $ 297,261 | ||
| Total risk-based capital, actual ratio | 0.1294 | 0.1462 | ||
| Total risk-based capital ratio, required amount | $ 180,821 | $ 162,666 | ||
| Total risk-based capital, required ratio | 0.0800 | 0.0800 | ||
| Tier 1 Leverage ratio, actual amount | $ 264,185 | $ 271,806 | ||
| Tier 1 Leverage, actual ratio | 0.0879 | 0.0894 | ||
| Tier 1 Leverage ratio, required amount | $ 120,248 | $ 121,623 | ||
| Tier 1 Leverage, required ratio | 0.0400 | 0.0400 | ||
| Common equity Tier 1 to be well capitalized, amount | [1] | $ 146,917 | $ 132,166 | |
| Common equity Tier 1, to be well capitalized ratio | [1] | 6.50% | 6.50% | |
| Tier 1 risk-based capital to be well capitalized, amount | [1] | $ 180,821 | $ 162,666 | |
| Tier 1 risk-based capital, to be well capitalized ratio | [1] | 0.0800 | 0.0800 | |
| Total risk-based capital to be well capitalized, amount | [1] | $ 226,026 | $ 203,332 | |
| Total risk-based capital, to be well capitalized ratio | [1] | 0.1000 | 0.1000 | |
| Tier 1 Leverage to be well capitalized, amount | [1] | $ 150,310 | $ 152,028 | |
| Tier 1 Leverage, to be well capitalized ratio | [1] | 0.0500 | 0.0500 | |
| Fully Phased-In [Member] | ||||
| Common equity Tier 1 ratio, required amount | $ 159,183 | $ 143,084 | ||
| Common equity Tier 1, required ratio | 7.00% | 7.00% | ||
| Tier 1 risk-based capital, actual ratio | 0.0850 | 0.0850 | ||
| Tier 1 risk-based capital ratio, required amount | $ 193,294 | $ 173,745 | ||
| Total risk-based capital ratio, required amount | $ 238,775 | $ 214,626 | ||
| Total risk-based capital, required ratio | 0.1050 | 0.1050 | ||
| Fully Phased-In [Member] | First Community Bank [Member] | ||||
| Common equity Tier 1 ratio, required amount | $ 158,218 | $ 142,332 | ||
| Common equity Tier 1, required ratio | 7.00% | 7.00% | ||
| Tier 1 risk-based capital, actual ratio | 0.0850 | 0.0850 | ||
| Tier 1 risk-based capital ratio, required amount | $ 192,122 | $ 172,832 | ||
| Total risk-based capital ratio, required amount | $ 237,327 | $ 213,499 | ||
| Total risk-based capital, required ratio | 0.1050 | 0.1050 | ||
| 
 | ||||
| Note 21 - Parent Company Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cash and due from banks | $ 63,044 | $ 47,067 | [1] | ||||||||||
| Debt securities available for sale | 300,349 | 76,292 | [1] | $ 83,358 | [2] | ||||||||
| Other assets | 103,673 | 106,691 | [1] | ||||||||||
| Total assets | 3,135,572 | 3,194,519 | [1] | ||||||||||
| Total liabilities | 2,713,587 | 2,766,744 | [1] | ||||||||||
| Common stock | 16,225 | 16,878 | |||||||||||
| Additional paid-in capital | 128,508 | 147,619 | [1] | ||||||||||
| Retained earnings | 292,971 | 264,824 | [1] | $ 237,585 | [3] | ||||||||
| Accumulated other comprehensive loss | (15,719) | (1,546) | [1] | ||||||||||
| Total stockholders' equity | 421,985 | 427,775 | [1] | $ 426,730 | $ 428,819 | ||||||||
| Total liabilities and stockholders' equity | 3,135,572 | 3,194,519 | [1] | ||||||||||
| Parent Company [Member] | |||||||||||||
| Cash and due from banks | 16,988 | 7,728 | |||||||||||
| Debt securities available for sale | 17,313 | 9,919 | |||||||||||
| Investment in subsidiaries | 382,286 | 405,374 | |||||||||||
| Other assets | 5,910 | 5,522 | |||||||||||
| Total assets | 422,497 | 428,543 | |||||||||||
| Other liabilities | 512 | 768 | |||||||||||
| Total liabilities | 512 | 768 | |||||||||||
| Common stock | 16,225 | 16,878 | |||||||||||
| Additional paid-in capital | 128,508 | 147,619 | |||||||||||
| Retained earnings | 292,971 | 264,824 | |||||||||||
| Accumulated other comprehensive loss | (15,719) | (1,546) | |||||||||||
| Total stockholders' equity | 421,985 | 427,775 | |||||||||||
| Total liabilities and stockholders' equity | $ 422,497 | $ 428,543 | |||||||||||
| 
 | |||||||||||||
| Note 21 - Parent Company Financial Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Other operating expense | $ 10,475 | $ 11,737 | $ 12,410 | ||||||||
| Income tax expense | $ 3,076 | $ 4,111 | $ 3,423 | $ 2,885 | $ 3,037 | $ 3,816 | $ 4,077 | $ 4,430 | 13,495 | 15,360 | 10,186 | 
| Net income | $ 12,583 | $ 13,351 | $ 11,213 | $ 9,515 | $ 10,555 | $ 12,608 | $ 13,403 | $ 14,602 | 46,662 | 51,168 | 35,926 | 
| Parent Company [Member] | |||||||||||
| Cash dividends received from subsidiary bank | 56,250 | 53,200 | 23,710 | ||||||||
| Other income | 222 | 8 | 3 | ||||||||
| Other operating expense | 1,052 | 1,086 | 1,446 | ||||||||
| Income before income taxes and equity in undistributed net income of subsidiaries | 55,420 | 52,122 | 22,267 | ||||||||
| Income tax expense | (224) | (351) | (375) | ||||||||
| Income before equity in undistributed net income of subsidiaries | 55,644 | 52,473 | 22,642 | ||||||||
| Equity in (dividends in excess) of undistributed net income of subsidiaries | (8,982) | (1,305) | 13,284 | ||||||||
| Net income | $ 46,662 | $ 51,168 | $ 35,926 | ||||||||
| Note 21 - Parent Company Financial Information - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Net income | $ 12,583 | $ 13,351 | $ 11,213 | $ 9,515 | $ 10,555 | $ 12,608 | $ 13,403 | $ 14,602 | $ 46,662 | $ 51,168 | $ 35,926 | 
| Decrease (increase) in other operating activities | 3,671 | 1,300 | (6,662) | ||||||||
| Net cash provided by operating activities | 59,024 | 48,215 | 45,844 | ||||||||
| Investing activities | |||||||||||
| Payments to acquire securities available for sale | (269,337) | (22,394) | (10,267) | ||||||||
| Net cash provided by investing activities | (536,779) | 35,350 | 17,798 | ||||||||
| Financing activities | |||||||||||
| Payments for repurchase of common stock | 21,311 | 28,882 | 21,872 | ||||||||
| Payments of common stock dividends | (18,515) | (18,059) | (17,876) | ||||||||
| Net Cash Provided by (Used in) Financing Activities, Total | (28,838) | 137,313 | 175,910 | ||||||||
| Cash and cash equivalents increase (decrease) | (506,593) | 220,878 | 239,552 | ||||||||
| Cash and cash equivalents at beginning of period | 677,439 | 456,561 | 677,439 | 456,561 | 217,009 | ||||||
| Cash and cash equivalents at end of period | 170,846 | 677,439 | 170,846 | 677,439 | 456,561 | ||||||
| Parent Company [Member] | |||||||||||
| Net income | 46,662 | 51,168 | 35,926 | ||||||||
| Decrease (increase) in other operating activities | 8,442 | 253 | 1,047 | ||||||||
| Net cash provided by operating activities | 55,104 | 51,421 | 36,973 | ||||||||
| Investing activities | |||||||||||
| Payments to acquire securities available for sale | (19,372) | 0 | 0 | ||||||||
| Proceeds from maturities, calls, sales of investment securities | 11,807 | (9,919) | 0 | ||||||||
| Dividends in excess of undistributed net income of subsidiaries | 0 | 1,305 | (13,284) | ||||||||
| Net cash provided by investing activities | (7,565) | (8,614) | (13,284) | ||||||||
| Financing activities | |||||||||||
| Proceeds from issuance of common stock | 172 | 0 | 0 | ||||||||
| Payments for repurchase of common stock | (21,311) | (28,882) | (21,872) | ||||||||
| Payments of common stock dividends | (18,515) | (18,059) | (17,876) | ||||||||
| Net change in other financing activities | 1,375 | 1,773 | 2,150 | ||||||||
| Net Cash Provided by (Used in) Financing Activities, Total | (38,279) | (45,168) | (37,598) | ||||||||
| Cash and cash equivalents increase (decrease) | 9,260 | (2,361) | (13,909) | ||||||||
| Cash and cash equivalents at beginning of period | $ 7,728 | $ 10,089 | 7,728 | 10,089 | 23,998 | ||||||
| Cash and cash equivalents at end of period | $ 16,988 | $ 7,728 | $ 16,988 | $ 7,728 | $ 10,089 | ||||||
| Note 23 - Quarterly Financial Data (Unaudited) - Summary of Quarterly Earnings (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |
| Interest income | $ 30,988 | $ 29,722 | $ 27,970 | $ 25,639 | $ 25,832 | $ 25,789 | $ 26,538 | $ 27,151 | $ 114,319 | $ 105,310 | $ 114,036 | 
| Interest expense | 367 | 380 | 423 | 486 | 600 | 643 | 724 | 869 | 1,656 | 2,836 | 5,464 | 
| Net interest income | 30,621 | 29,342 | 27,547 | 25,153 | 25,232 | 25,146 | 25,814 | 26,282 | 112,663 | 102,474 | 108,572 | 
| Provision for (recovery of) credit/loan losses | 3,416 | 685 | 510 | 1,961 | (846) | (1,394) | (2,230) | (4,001) | 6,572 | (8,471) | 12,668 | 
| Net interest income after provision | 27,205 | 28,657 | 27,037 | 23,192 | 26,078 | 26,540 | 28,044 | 30,283 | 106,091 | 110,945 | 95,904 | 
| Noninterest income, excluding net gain (loss) on sale of securities | 9,184 | 9,950 | 8,854 | 9,194 | 9,215 | 8,720 | 8,797 | 7,569 | |||
| Noninterest expense | 20,730 | 21,145 | 21,255 | 19,986 | 21,701 | 18,836 | 19,361 | 18,820 | 83,116 | 78,718 | 79,625 | 
| Income before income taxes | 15,659 | 17,462 | 14,636 | 12,400 | 13,592 | 16,424 | 17,480 | 19,032 | 60,157 | 66,528 | 46,112 | 
| Income tax expense | 3,076 | 4,111 | 3,423 | 2,885 | 3,037 | 3,816 | 4,077 | 4,430 | 13,495 | 15,360 | 10,186 | 
| Net income | $ 12,583 | $ 13,351 | $ 11,213 | $ 9,515 | $ 10,555 | $ 12,608 | $ 13,403 | $ 14,602 | $ 46,662 | $ 51,168 | $ 35,926 | 
| Basic (in dollars per share) | $ 0.78 | $ 0.82 | $ 0.67 | $ 0.57 | $ 0.62 | $ 0.73 | $ 0.77 | $ 0.83 | $ 2.82 | $ 2.95 | $ 2.02 | 
| Diluted (in dollars per share) | 0.77 | 0.81 | 0.67 | 0.56 | 0.62 | 0.73 | 0.76 | 0.82 | 2.82 | 2.94 | 2.02 | 
| Dividends per common share (in dollars per share) | $ 0.29 | $ 0.29 | $ 0.27 | $ 0.27 | $ 0.27 | $ 0.27 | $ 0.25 | $ 0.25 | $ 1.12 | $ 1.04 | $ 1.00 | 
| Weighted average common shares outstanding, basic (in shares) | 16,229,289 | 16,378,022 | 16,662,817 | 16,817,284 | 16,974,005 | 17,221,244 | 17,486,182 | 17,669,937 | 16,519,848 | 17,335,615 | 17,781,748 | 
| Weighted average diluted shares outstanding (in shares) | 16,281,922 | 16,413,202 | 16,682,615 | 16,864,515 | 17,038,980 | 17,279,576 | 17,536,144 | 17,729,185 | 16,562,257 | 17,402,936 | 17,815,380 |