Document and Entity Information - shares |
9 Months Ended | |
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Mar. 31, 2017 |
Apr. 30, 2017 |
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| Document and Entity Information [Abstract] | ||
| Entity Registrant Name | ALPHA & OMEGA SEMICONDUCTOR Ltd | |
| Entity Central Index Key | 0001387467 | |
| Current Fiscal Year End Date | --06-30 | |
| Entity Filer Category | Accelerated Filer | |
| Document Type | 10-Q | |
| Document Period End Date | Mar. 31, 2017 | |
| Document Fiscal Year Focus | 2017 | |
| Document Fiscal Period Focus | Q3 | |
| Amendment Flag | false | |
| Entity Common Stock, Shares Outstanding | 23,790,333 |
CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Common shares, par value (in dollars per share) | $ 0.002 | $ 0.002 |
| Common shares, authorized (in shares) | 50,000,000 | 50,000,000 |
| Common stock, shares issued (in shares) | 29,391,000 | 28,405,000 |
| Common stock, shares outstanding (in shares) | 23,778,000 | 22,754,000 |
| Preferred stock, par value (in dollars per share) | $ 0.002 | $ 0.002 |
| Preferred stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Preferred stock, shares issued (in shares) | 0 | 0 |
| Preferred stock, shares outstanding (in shares) | 0 | 0 |
| Treasury shares (in shares) | 5,613,000 | 5,651,000 |
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2017 |
Mar. 31, 2016 |
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| Net income (loss) including noncontrolling interest | $ 2,386 | $ (1,263) | $ 6,473 | $ (4,849) |
| Net income (loss) attributable to Alpha and Omega Semiconductor Limited | 3,556 | (1,263) | 9,710 | (4,849) |
| Foreign currency translation adjustment | 693 | 22 | (1,563) | (133) |
| Comprehensive income (loss) | 3,079 | (1,241) | 4,910 | (4,982) |
| Noncontrolling interest | (937) | 0 | (4,069) | 0 |
| Comprehensive income (loss) attributable to Alpha and Omega Semiconductor Limited | $ 4,016 | $ (1,241) | $ 8,979 | $ (4,982) |
The Company and Significant Accounting Policies |
9 Months Ended |
|---|---|
Mar. 31, 2017 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| The Company and Significant Accounting Policies | The Company and Significant Accounting Policies The Company Alpha and Omega Semiconductor Limited and its subsidiaries (the “Company,” "AOS," "we" or "us") design, develop and supply a broad range of power semiconductors. The Company's portfolio of products targets high-volume applications, including personal computers, flat panel TVs, LED lighting, smart phones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. The Company conducts its operations primarily in the United States of America (“USA”), Hong Kong, China, Taiwan, Korea and Japan. Basis of Preparation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Article 10 of Securities and Exchange Commission Regulation S-X, as amended. They do not include all information and footnotes necessary for a fair presentation of financial position, results of operations and cash flows in conformity with U.S. GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2016. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included in the interim periods. Operating results for the nine months ended March 31, 2017 are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2017. The condensed consolidated balance sheet at June 30, 2016 is derived from the audited financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2016. Reclassification The Company has reclassified certain amounts previously reported in its financial statements to conform to the current presentation. These reclassifications did not have a material impact on our consolidated financial statements. Joint Venture In March 2016, the Company executed an agreement with two strategic investment funds owned by the Municipality of Chongqing, China (the "Chongqing Funds") to form a joint venture for a new state-of-the-art power semiconductor packaging, testing and wafer fabrication facility in Liangjiang New Area of Chongqing (the "Joint Venture"). The initial capitalization of the Joint Venture under the agreement is $330.0 million, which includes cash contributions from the Chongqing Funds and contributions of cash, equipment and intangible assets from the Company. The Company owns 51% and the Chongqing Funds own 49% of the equity interest of the Joint Venture. The financial statements of the Joint Venture are consolidated in the accompanying financial statements of the Company because the Company has a controlling financial interest. Use of Estimates The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires the Company to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. To the extent there are material differences between these estimates and actual results, the Company's condensed consolidated financial statements will be affected. On an ongoing basis, the Company evaluates the estimates, judgments and assumptions including those related to stock rotation returns, price adjustments, allowance for doubtful accounts, inventory reserves, warranty accrual, income taxes, share-based compensation, and useful lives for property, plant and equipment and intangible assets. Fair Value of Financial Instruments The fair values of cash equivalents are based on observable market prices and have been categorized in Level 1 in the fair value hierarchy. Cash equivalents consist primarily of short term bank deposits. The carrying values of financial instruments such as cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values due to their short-term maturities. Impairment of Long-Lived Assets Long-lived assets or asset groups are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset might not be recoverable. Factors that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. Where such factors indicate potential impairment, the recoverability of an asset or asset group is assessed by determining if the carrying value of the asset or asset group exceeds the sum of the projected undiscounted cash flows expected to result from the use and eventual disposition of the assets over the remaining economic life. The impairment loss is measured based on the difference between the carrying amount and the estimated fair value. Comprehensive Income (Loss) Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company's accumulated other comprehensive income (loss) consists of cumulative foreign currency translation adjustments. Total comprehensive income (loss) is presented in the condensed consolidated statements of comprehensive income (loss). Recent Accounting Pronouncements In November 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-18, "Statement of Cash Flows: Restricted Cash ("ASU 2016-18"). ASU 2016-18 requires amounts generally described as restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the total beginning and ending amounts for the periods shown on the statement of cash flows. This ASU will be effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption permitted and requires retrospective adoption. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In October 2016, the FASB issued ASU No. 2016-16, "Income Taxes - Intra-Entity Transfers of Assets Other Than Inventory ("ASU 2016-16"). ASU 2016-16 requires entities to recognize income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amended guidance is effective for annual reporting periods beginning after December 15, 2018, and interim reporting periods within annual periods beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact the adoption of ASU 2016-16 will have on its consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). ASU 2016-15 identifies how certain cash receipts and cash payments are presented and classified in the Statement of Cash Flows under Topic 230. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption permitted. Upon adoption, entities must apply the guidance retrospectively to all periods presented. The Company is currently evaluating the impact the adoption of ASU 2016-15 will have on its consolidated financial statements. In May 2016, the FASB issued Accounting Standards Update ("ASU") 2016-12, "Revenue from Contracts with Customers (Topic 606) - Narrow-Scope Improvements and Practical Expedients." ASU 2016-12 provides additional guidance established by the FASB-IASB Joint Transition Resource Group for Revenue Recognition regarding the implementation of certain aspects of the new revenue recognition guidance. More specifically, the amendment provides additional guidance regarding assessing the collectability criterion, the presentation of sales taxes and other similar taxes collected from customers, noncash consideration, contract modifications or completed contracts at transition of the new revenue recognition guidance and technical corrections. The effective date is consistent with the effective date of ASU 2014-09. The Company is currently evaluating the impact the adoption of ASU 2016-12 will have on its consolidated financial statements. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing ("ASU 2016-10"). ASU 2016-10 clarifies two aspects of Topic 606: (a) identifying performance obligations; and (b) the licensing implementation guidance. The update is effective for annual periods beginning after December 15, 2017 including interim reporting periods therein. The Company is currently evaluating the impact the adoption of ASU 2016-10 will have on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"). ASU 2016-09 simplifies several aspects of the accounting for employee share-based payment transactions including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification of related amounts within the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In February 2016, the FASB issued No. 2016-02, Leases ("ASU 2016-02"). This guidance requires a dual approach for lessee accounting under which a lessee will account for leases as finance leases or operating leases. Both finance and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding liability on its balance sheet, with differing methodology for income statement recognition. This guidance is effective for public business entities for fiscal years, and interim periods within those years, beginning after December 15, 2018, and early adoption is permitted. A modified retrospective approach is required for all leases existing or entered into after the beginning of the earliest comparative period in the consolidated financial statements. The Company is currently assessing the impact that adoption of this guidance will have on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). The standard provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The core principle of the model is to recognize revenue when control of the goods or services transfers to the customer, as opposed to recognizing revenue when the risks and rewards transfer to the customer under the existing revenue guidance. In August 2015, the FASB issued an accounting standard update for a one-year deferral of the effective date of ASU 2014-09 to annual and interim periods beginning after December 15, 2017 and permits entities to early adopt the standard of ASU 2014-09 for annual and interim reporting periods beginning after December 15, 2016. Companies are permitted to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the timing of its adoption and the impact of adoption on its consolidated financial statements. |
Net Income (Loss) Per Share |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Income (Loss) Per Share | Net Income (Loss) Per Common Share Attributable to Alpha and Omega Semiconductor Limited The following table presents the calculation of basic and diluted net income (loss) per share attributable to common shareholders:
The following potential dilutive securities were excluded from the computation of diluted net income (loss) per share as their effect would have been anti-dilutive:
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Concentration of Credit Risk and Significant Customers |
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| Risks and Uncertainties [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Concentration of Credit Risk and Significant Customers | Concentration of Credit Risk and Significant Customers The Company manages its credit risk associated with exposure to distributors and direct customers on outstanding accounts receivable through the application and review of credit approvals, credit ratings and other monitoring procedures. In some instances, the Company also obtains letters of credit from certain customers. Credit sales, which are mainly on credit terms of 30 to 60 days, are only made to customers who meet the Company's credit requirements, while sales to new customers or customers with low credit ratings are usually made on an advance payment basis. The Company considers its trade accounts receivable to be of good credit quality because its key distributors and direct customers have long-standing business relationships with the Company and the Company has not experienced any significant write-offs of accounts receivable in the past. The Company closely monitors the aging of accounts receivable from its distributors and direct customers, and regularly reviews their financial positions, when available. Summarized below are individual customers whose revenue or accounts receivable balances were more than 10% of the respective total consolidated amounts:
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Balance Sheet Components |
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| Balance Sheet Related Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Balance Sheet Components | Balance Sheet Components Accounts receivable, net:
Inventories:
Property, plant and equipment, net:
Land use rights, net:
Other long-term assets:
Accrued liabilities:
The activities in the warranty accrual, included in accrued liabilities, are as follows:
The activities in the stock rotation accrual, included in accrued liabilities, are as follows:
Other Long-term liabilities:
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Joint Venture |
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| Equity Method Investments and Joint Ventures [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Joint Venture | 5. Joint Venture On March 29, 2016, the Company entered into a joint venture contract (the “JV Agreement”) with two investment funds owned by the Municipality of Chongqing (the “Chongqing Funds”), pursuant to which the Company and the Chongqing Funds formed a joint venture, (the “JV Company”), for the purpose of constructing and operating a power semiconductor packaging, testing and 12-inch wafer fabrication facility in the Liangjiang New Area of Chongqing, China (the “JV Transaction”). The total initial capitalization of the JV Company is $330.0 million (the “Initial Capitalization”), which includes cash contribution from the Chongqing Funds and contributions of cash, equipments and intangible assets from the Company. The Initial Capitalization is expected to be completed in stages. The Company owns 51%, and the Chongqing Funds own 49%, of the equity interest in the JV Company. If both parties agree that the termination of the JV Company is the best interest of each party or the JV Company is bankrupt or insolvent where either party may terminate early, after paying the debts of the JV Company, the remaining assets of the JV Company shall be paid to the Chongqing Funds to cover the principal of its total paid-in contributions plus interest at 10% simple annual rate prior to distributing the balance of the JV Company's assets to the Company. The Company expects the JV Company to commence its initial production in the second half of fiscal year ending June 30, 2018. There is no private land ownership in China. Individuals and companies are permitted to acquire land use rights for specific purpose. In September 2016, the JV Company paid approximately $8.7 million for land use rights to build the manufacturing facility. In March 2017, the JV Company received the necessary land use right certificate from the PRC government. The land use rights will expire on November 30, 2066. As part of the JV Transaction, the JV Company entered into an Engineering, Procurement and Construction Contract (the “EPC Contract”) with The IT Electronics Eleventh Design & Research Institute Scientific and Technological Engineering Corporation Limited (the “Contractor”), effective as of January 10, 2017 (the "Effective Date"), pursuant which the Contractor was engaged to construct the manufacturing facility contemplated under the JV Agreement. Under the EPC Contract, the Contractor’s obligations include, but are not limited to: (i) the development of conceptual design, initial design, construction drawing design and optimization, and submission of such designs to the JV Company for examination and confirmation; and (ii) the construction of the assembly and wafer fabrication facilities and related procurement services, including the selection and engagement of subcontractors, in accordance with a construction schedule agreed upon by the parties. The total price payable under the EPC Contract is Chinese Renminbi (RMB) 540,000,000, or approximately $77,996,360 based on the currency exchange rate between RMB and U.S. Dollars on the Effective Date, which consists of $2,820,154 (RMB 19,525,052) of design fees (“Design Fees”) and $75,176,206 (RMB 520,474,948) of construction and procurement fees (including compliance with safety and aesthetic requirements) (“Construction Fees”). The Design Fees and Construction Fees will be paid by the JV Company pursuant to a payment schedule based on the progress of the construction and the achievements of specified milestones, approximately $58.3 million and $19.7 million in calendar year 2017 and 2018, respectively. The payment may be subject to volatility as a result of exposure to fluctuations in RMB foreign exchange rates. As of March 31, 2017, the JV Company paid approximately $11.9 million of down payment related to EPC Contract. The Company began consolidating the financial statements of the JV Company in the quarter ended June 30, 2016. During the quarter ended September 30, 2016, the Chongqing Funds contributed $33.0 million of initial capital in cash and the Company fulfilled its obligation to contribute certain packaging equipments as required by the JV Agreement by transferring the legal titles of such equipment to the JV Company. Within one year from June 30, 2016, the Company expects to contribute certain intangible assets and cash of $10.0 million pursuant to the terms of the JV Agreement. The changes in total stockholders' equity and noncontrolling interest were as follows (in thousands):
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Shareholders' Equity and Share-based Compensation |
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| Share-based Compensation [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholders' Equity and Share-based Compensation | Shareholders' Equity and Share-based Compensation Share Repurchase In April 2015, the Board of Directors approved an increase in the remaining available amount under the Company’s then effective share repurchase program from approximately $17.8 million to $50.0 million. The repurchases may be made from the open market pursuant to a pre-established Rule 10b5-1 trading plan (as amended, the "Repurchase Trading Plan") or through privately negotiated transactions. In July 2015, the Company completed a Dutch tender offer (the "Tender Offer") in which it purchased 3,296,703 shares of its common shares, at a purchase price of $9.10 per share, for an aggregate purchase price of $30.0 million, excluding fees and expenses relating to the Tender Offer. The Tender Offer was part of the $50.0 million share repurchase program approved by the Board on April 15, 2015. Shares repurchased are accounted for as treasury shares and the total cost of shares repurchased is recorded as a reduction of shareholders' equity. During the nine months ended March 31, 2017, the Company did not repurchase any shares pursuant to the repurchase program. Since the inception of the program in 2010, the Company repurchased an aggregate of 5,723,093 shares from the open market including shares purchased in the Tender Offer for a total cost of $50.8 million, at an average price of $8.87 per share, excluding fees and related expenses. No repurchased shares have been retired. Of the 5,723,093 repurchased shares, 110,153 shares with a weighted average repurchase price of $10.98 per share, were reissued at an average price of $5.79 per share pursuant to option exercises and vested restricted share units. As of March 31, 2017, $6.4 million remained available under the share repurchase program. Stock Options The Company did not grant any stock options during the nine months ended March 31, 2017. Options expected to vest are the result of applying the pre-vesting forfeiture rate assumption to total outstanding options. The following table summarizes the Company's stock option activities for the nine months ended March 31, 2017:
Restricted Stock Units ("RSU") The following table summarizes the Company's RSU activities for the nine months ended March 31, 2017:
The fair value of RSU is estimated based on the market price of the Company's share on the date of grant. In March 2017, the Company granted certain performance-based RSUs (“PRSUs”) to its key personnel. The number shares of PRSU were determined based on the level of attainment of predetermined financial goals. The PRSU will vest in four equal annual installments from March 15, 2018 if certain predetermined financial goals were met. The Company recorded approximately $68,000 of expenses for these PRSUs in the three and nine months ended March 31, 2017 based on 170,000 PRSU grants. Employee Share Purchase Plan ("ESPP") The assumptions used to estimate the fair values of common shares issued under the ESPP were as follows:
Share-based Compensation Expense The total share-based compensation expense related to stock options, RSUs and ESPP described above, recognized in the condensed consolidated statements of operations for the periods presented was as follows:
As of March 31, 2017, total unrecognized compensation cost under the Company's equity plans was $10.8 million, which is expected to be recognized over a weighted-average period of 1.9 years. |
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Income Taxes |
9 Months Ended |
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Mar. 31, 2017 | |
| Income Tax Disclosure [Abstract] | |
| Income Taxes | Income Taxes The Company recognized income tax expense of approximately $0.5 million and $1.2 million for the three months ended March 31, 2017 and 2016, respectively. The Company recognized income tax expense of approximately $2.8 million and $3.4 million for the nine months ended March 31, 2017 and 2016, respectively. The estimated effective tax rate for the three months ended March 31, 2017 was 18.0% compared to (2,770.5)% for the three months ended March 31, 2016. The estimated effective tax rate for the nine months ended March 31, 2017 was 30.5% compared to (246.1)% for the nine months ended March 31, 2016. The changes in the effective tax rate and tax expense between the periods resulted primarily from changes in the mix of earnings in various geographic jurisdictions between the current quarter and the same period of last year. During the quarter ended September 30, 2016, the Company fulfilled its obligations to contribute certain packaging equipment as required by the JV Agreement by transferring the legal titles of such equipment to the JV Company. As a result of the transfer, the Company reduced its deferred tax assets by $6.6 million and recorded a $6.6 million in prepaid tax asset, which is amortized to tax expense over the useful life of the assets. As of March 31, 2017, the prepaid tax asset was amortized down to $5.8 million, of which $1.1 million and $4.7 million were included in prepaid and other current assets and other long-term assets on the Company’s balance sheet, respectively. The Company files its income tax returns in the United States and in various foreign jurisdictions. The tax years 2001 to 2016 remain open to examination by U.S. federal and state tax authorities. The tax years 2009 to 2016 remain open to examination by foreign tax authorities. The Company's income tax returns are subject to examinations by the Internal Revenue Service and other tax authorities in various jurisdictions. In accordance with the guidance on the accounting for uncertainty in income taxes, the Company regularly assesses the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. These assessments can require considerable estimates and judgments. As of March 31, 2017, the gross amount of unrecognized tax benefits was approximately $6.4 million, of which $4.0 million, if recognized, would reduce the effective income tax rate in future periods. If the Company's estimate of income tax liabilities proves to be less than the ultimate assessment, then a further charge to expense would be required. If events occur and the payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the Company determines the liabilities are no longer necessary. The Company does not anticipate any material changes to its uncertain tax positions during the next twelve months. On July 27, 2015, in Altera Corp. v. Commissioner, the U.S. Tax Court issued an opinion related to the treatment of share-based compensation expense in an intercompany cost-sharing arrangement. A final decision has yet to be issued by the Tax Court due to other outstanding issues related to the case. At this time, the U.S. Department of the Treasury has not withdrawn the requirement to include share-based compensation from its regulations. Due to the uncertainty surrounding the status of the current regulations, questions related to the scope of potential benefits, and the risk of the Tax Court’s decision being overturned upon appeal, the Company has not recorded any benefit as of March 31, 2017. The Company will continue to monitor ongoing developments and potential impacts to its financial statements. |
Segment and Geographic Information |
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment and Geographic Information | Segment and Geographic Information The Company is organized as, and operates in, one operating segment: the design, development and supply of power semiconductor products for computing, consumer electronics, communication and industrial applications. The chief operating decision-maker is the Chief Executive Officer. The financial information presented to the Company's Chief Executive Officer is on a consolidated basis, accompanied by information about revenue by customer and geographic region, for purposes of evaluating financial performance and allocating resources. The Company has one business segment, and there are no segment managers who are held accountable for operations, operating results and plans for products or components below the consolidated unit level. Accordingly, the Company reports as a single operating segment. The Company sells its products primarily to distributors in the Asia Pacific region, who in turn sell these products to end customers. Because the Company's distributors sell their products to end customers which may have a global presence, revenue by geographical location is not necessarily representative of the geographical distribution of sales to end user markets. The revenue by geographical location in the following tables is based on the country or region to which the products were shipped to:
The following is a summary of revenue by product type:
Long-lived assets, net consisting of property, plant and equipment and land use rights, by geographical area are as follows:
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Commitments and Contingencies |
9 Months Ended |
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Mar. 31, 2017 | |
| Commitments and Contingencies Disclosure [Abstract] | |
| Commitments and Contingencies | Commitments and Contingencies Purchase Commitments As of March 31, 2017 and June 30, 2016, the Company had approximately $31.2 million and $39.6 million, respectively, of outstanding purchase commitments primarily for purchases of semiconductor raw materials, wafers, spare parts and packaging and testing services, and approximately $11.1 million and $6.6 million, respectively, of capital commitments for the purchase of property and equipment. Contingencies and Indemnities The Company is currently not a party to any pending material legal proceedings. The Company has in the past, and may from time to time in the future, become involved in legal proceedings arising from the normal course of business activities. The semiconductor industry is characterized by frequent claims and litigation, including claims regarding patent and other intellectual property rights as well as improper hiring practices. Irrespective of the validity of such claims, the Company could incur significant costs in the defense of such claims and suffer adverse effects on its operations. The Company is a party to a variety of agreements that it has contracted with various third parties. Pursuant to these agreements, the Company may be obligated to indemnify another party to such an agreement with respect to certain matters. Typically, these obligations arise in the context of contracts entered into by the Company, under which the Company customarily agrees to hold the other party harmless against losses arising from a breach of representations and covenants related to such matters as title to assets sold, certain intellectual property rights, specified environmental matters and certain income taxes. In these circumstances, payment by the Company is customarily conditioned on the other party making a claim pursuant to the procedures specified in the particular contract, which procedures typically allow the Company to challenge the other party's claim. Further, the Company's obligations under these agreements may be limited in time and/or amount, and in some instances, the Company may have recourse against third parties for certain payments made by it under these agreements. The Company has not historically paid or recorded any material indemnifications and no accrual has been made at March 31, 2017 and June 30, 2016. The Company has agreed to indemnify its directors and certain employees as permitted by law and pursuant to its bye-laws, and has entered into indemnification agreements with its directors and executive officers. The Company has not recorded a liability associated with these indemnification arrangements, as it historically has not incurred any material costs associated with such indemnification obligations. Costs associated with such indemnification obligations may be mitigated by insurance coverage that the Company maintains. However, such insurance may not cover any, or may cover only a portion of, the amounts the Company may be required to pay. In addition, the Company may not be able to maintain such insurance coverage in the future. Joint Venture In March 2016, the Company executed an agreement with two strategic investment funds owned by the Municipality of Chongqing, China to form a joint venture for a new state-of-the-art power semiconductor packaging, testing and wafer fabrication facility in Liangjiang New Area of Chongqing (the "Joint Venture"). The initial capitalization of the Joint Venture under the agreement is $330.0 million, which includes cash contribution from the Chongqing Funds and contributions of cash, equipment and intangible assets from the Company. The Company owns 51% and the Chongqing Funds own 49% of the equity interest of the Joint Venture. The Joint Venture is accounted under the provisions of the consolidation guidance since the Company has controlling financial interest. The Joint Venture is expected to commence its initial packaging production in the second half of fiscal year ending June 30, 2018. Within one year from June 30, 2016, the Company is expected to contribute cash of $10.0 million and certain intangible assets. The Joint Venture plans to construct and operate a 12-inch wafer fabrication facility for the production of power semiconductors. In January 2017, the JV Company entered into an Engineering, Procurement and Construction Contract (the "EPC Contract") with The IT Electronics Eleventh Design & Research Institute Scientific and Technological Engineering Corporation Limited, effective as of January 10, 2017 (the "Effective Date"). The total price payable by the JV Company under the EPC Contract is RMB 540,000,000, or $77,996,360 based on the currency exchange rate between RMB and U.S. Dollars on the Effective Date, which consists of $2,820,154 (RMB 19,525,052) of design fees and $75,176,206 (RMB 520,474,948) of construction and procurement fees, including compliance with safety and aesthetic requirements. |
The Company and Significant Accounting Policies (Policies) |
9 Months Ended |
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Mar. 31, 2017 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Basis of Preparation | Basis of Preparation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Article 10 of Securities and Exchange Commission Regulation S-X, as amended. They do not include all information and footnotes necessary for a fair presentation of financial position, results of operations and cash flows in conformity with U.S. GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2016. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included in the interim periods. Operating results for the nine months ended March 31, 2017 are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2017. The condensed consolidated balance sheet at June 30, 2016 is derived from the audited financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2016. |
| Reclassification | Reclassification The Company has reclassified certain amounts previously reported in its financial statements to conform to the current presentation. These reclassifications did not have a material impact on our consolidated financial statements. |
| Use of Estimates | Use of Estimates The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires the Company to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. To the extent there are material differences between these estimates and actual results, the Company's condensed consolidated financial statements will be affected. On an ongoing basis, the Company evaluates the estimates, judgments and assumptions including those related to stock rotation returns, price adjustments, allowance for doubtful accounts, inventory reserves, warranty accrual, income taxes, share-based compensation, and useful lives for property, plant and equipment and intangible assets. |
| Fair Value of Financial Instruments | Fair Value of Financial Instruments The fair values of cash equivalents are based on observable market prices and have been categorized in Level 1 in the fair value hierarchy. Cash equivalents consist primarily of short term bank deposits. The carrying values of financial instruments such as cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values due to their short-term maturities. |
| Impairment of Long-Lived Assets [Policy Text Block] | Impairment of Long-Lived Assets Long-lived assets or asset groups are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset might not be recoverable. Factors that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. Where such factors indicate potential impairment, the recoverability of an asset or asset group is assessed by determining if the carrying value of the asset or asset group exceeds the sum of the projected undiscounted cash flows expected to result from the use and eventual disposition of the assets over the remaining economic life. The impairment loss is measured based on the difference between the carrying amount and the estimated fair value. |
| Comprehensive Income (Loss) | Comprehensive Income (Loss) Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company's accumulated other comprehensive income (loss) consists of cumulative foreign currency translation adjustments. Total comprehensive income (loss) is presented in the condensed consolidated statements of comprehensive income (loss). |
| Recent Accounting Pronouncements | Recent Accounting Pronouncements In November 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-18, "Statement of Cash Flows: Restricted Cash ("ASU 2016-18"). ASU 2016-18 requires amounts generally described as restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the total beginning and ending amounts for the periods shown on the statement of cash flows. This ASU will be effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption permitted and requires retrospective adoption. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In October 2016, the FASB issued ASU No. 2016-16, "Income Taxes - Intra-Entity Transfers of Assets Other Than Inventory ("ASU 2016-16"). ASU 2016-16 requires entities to recognize income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amended guidance is effective for annual reporting periods beginning after December 15, 2018, and interim reporting periods within annual periods beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact the adoption of ASU 2016-16 will have on its consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). ASU 2016-15 identifies how certain cash receipts and cash payments are presented and classified in the Statement of Cash Flows under Topic 230. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption permitted. Upon adoption, entities must apply the guidance retrospectively to all periods presented. The Company is currently evaluating the impact the adoption of ASU 2016-15 will have on its consolidated financial statements. In May 2016, the FASB issued Accounting Standards Update ("ASU") 2016-12, "Revenue from Contracts with Customers (Topic 606) - Narrow-Scope Improvements and Practical Expedients." ASU 2016-12 provides additional guidance established by the FASB-IASB Joint Transition Resource Group for Revenue Recognition regarding the implementation of certain aspects of the new revenue recognition guidance. More specifically, the amendment provides additional guidance regarding assessing the collectability criterion, the presentation of sales taxes and other similar taxes collected from customers, noncash consideration, contract modifications or completed contracts at transition of the new revenue recognition guidance and technical corrections. The effective date is consistent with the effective date of ASU 2014-09. The Company is currently evaluating the impact the adoption of ASU 2016-12 will have on its consolidated financial statements. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing ("ASU 2016-10"). ASU 2016-10 clarifies two aspects of Topic 606: (a) identifying performance obligations; and (b) the licensing implementation guidance. The update is effective for annual periods beginning after December 15, 2017 including interim reporting periods therein. The Company is currently evaluating the impact the adoption of ASU 2016-10 will have on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"). ASU 2016-09 simplifies several aspects of the accounting for employee share-based payment transactions including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification of related amounts within the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In February 2016, the FASB issued No. 2016-02, Leases ("ASU 2016-02"). This guidance requires a dual approach for lessee accounting under which a lessee will account for leases as finance leases or operating leases. Both finance and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding liability on its balance sheet, with differing methodology for income statement recognition. This guidance is effective for public business entities for fiscal years, and interim periods within those years, beginning after December 15, 2018, and early adoption is permitted. A modified retrospective approach is required for all leases existing or entered into after the beginning of the earliest comparative period in the consolidated financial statements. The Company is currently assessing the impact that adoption of this guidance will have on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). The standard provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The core principle of the model is to recognize revenue when control of the goods or services transfers to the customer, as opposed to recognizing revenue when the risks and rewards transfer to the customer under the existing revenue guidance. In August 2015, the FASB issued an accounting standard update for a one-year deferral of the effective date of ASU 2014-09 to annual and interim periods beginning after December 15, 2017 and permits entities to early adopt the standard of ASU 2014-09 for annual and interim reporting periods beginning after December 15, 2016. Companies are permitted to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the timing of its adoption and the impact of adoption on its consolidated financial statements. |
| Concentration of Credit Risk | The Company manages its credit risk associated with exposure to distributors and direct customers on outstanding accounts receivable through the application and review of credit approvals, credit ratings and other monitoring procedures. In some instances, the Company also obtains letters of credit from certain customers. Credit sales, which are mainly on credit terms of 30 to 60 days, are only made to customers who meet the Company's credit requirements, while sales to new customers or customers with low credit ratings are usually made on an advance payment basis. The Company considers its trade accounts receivable to be of good credit quality because its key distributors and direct customers have long-standing business relationships with the Company and the Company has not experienced any significant write-offs of accounts receivable in the past. The Company closely monitors the aging of accounts receivable from its distributors and direct customers, and regularly reviews their financial positions, when available. |
Net Income (Loss) Per Share (Tables) |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Earnings Per Share, Basic and Diluted | The following table presents the calculation of basic and diluted net income (loss) per share attributable to common shareholders:
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| Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The following potential dilutive securities were excluded from the computation of diluted net income (loss) per share as their effect would have been anti-dilutive:
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Concentration of Credit Risk and Significant Customers (Tables) |
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| Risks and Uncertainties [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedules of Concentration of Risk, by Risk Factor | Summarized below are individual customers whose revenue or accounts receivable balances were more than 10% of the respective total consolidated amounts:
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Balance Sheet Components (Tables) |
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| Balance Sheet Related Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accounts, Notes, Loans and Financing Receivable | Accounts receivable, net:
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| Schedule of Inventory, Current | Inventories:
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| Property, Plant and Equipment | Property, plant and equipment, net:
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| Summary of Land Use Rights, Net | Land use rights, net:
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| Schedule of Other Assets, Noncurrent | Other long-term assets:
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| Schedule of Accrued Liabilities | Accrued liabilities:
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| Schedule of Product Warranty Liability | The activities in the warranty accrual, included in accrued liabilities, are as follows:
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| Stock Rotation Accrual | The activities in the stock rotation accrual, included in accrued liabilities, are as follows:
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| Schedule of Other Noncurrent Liabilities | Other Long-term liabilities:
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Joint Venture (Tables) |
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| Equity Method Investments and Joint Ventures [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Stockholders Equity | The changes in total stockholders' equity and noncontrolling interest were as follows (in thousands):
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Shareholders' Equity and Share-based Compensation (Tables) |
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| Share-based Compensation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Stock Option Activities | Stock Options The Company did not grant any stock options during the nine months ended March 31, 2017. Options expected to vest are the result of applying the pre-vesting forfeiture rate assumption to total outstanding options. The following table summarizes the Company's stock option activities for the nine months ended March 31, 2017:
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| Restricted Stock Units Activity | Restricted Stock Units ("RSU") The following table summarizes the Company's RSU activities for the nine months ended March 31, 2017:
The fair value of RSU is estimated based on the market price of the Company's share on the date of grant. |
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| Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] | Employee Share Purchase Plan ("ESPP") The assumptions used to estimate the fair values of common shares issued under the ESPP were as follows:
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| Share-based Compensation, Allocation of Recognized Period Costs | Share-based Compensation Expense The total share-based compensation expense related to stock options, RSUs and ESPP described above, recognized in the condensed consolidated statements of operations for the periods presented was as follows:
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Segment and Geographic Information (Tables) |
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas | Long-lived assets, net consisting of property, plant and equipment and land use rights, by geographical area are as follows:
The revenue by geographical location in the following tables is based on the country or region to which the products were shipped to:
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| Revenue from External Customers by Products and Services | The following is a summary of revenue by product type:
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The Company and Significant Accounting Policies Joint Venture (Details) - Facility in Liangjiang New Area of Chongqing (the 'Joint Venture') [Member] - USD ($) $ in Millions |
1 Months Ended | |
|---|---|---|
Mar. 31, 2016 |
Mar. 29, 2016 |
|
| Corporate Joint Venture [Member] | ||
| Initial capitalization of joint venture | $ 330.0 | |
| Chongqing Funds [Member] | ||
| Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 49.00% | |
| Parent Company [Member] | ||
| Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 51.00% |
Net Income (Loss) Per Share - Basic and Diluted Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Numerator: | ||||
| Net income (loss) attributable to Alpha and Omega Semiconductor Limited | $ 3,556 | $ (1,263) | $ 9,710 | $ (4,849) |
| Basic: | ||||
| Weighted average number of common shares used to compute basic net income (loss) per share | 23,675 | 22,232 | 23,396 | 22,400 |
| Effect of potentially dilutive securities: | ||||
| Stock options, RSUs and ESPP shares | 1,276 | 0 | 1,385 | 0 |
| Weighted average number of common shares used to compute diluted net income (loss) per share | 24,951 | 22,232 | 24,781 | 22,400 |
| Net income (loss) per share attributable to Alpha and Omega Semiconductor Limited: | ||||
| Basic (in dollars per share) | $ 0.15 | $ (0.06) | $ 0.42 | $ (0.22) |
| Diluted (in dollars per share) | $ 0.14 | $ (0.06) | $ 0.39 | $ (0.22) |
Net Income (Loss) Per Share - Potential Dilutive Shares (Details) - shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Potential dilutive securities (in shares) | 23 | 3,419 | 95 | 3,692 |
| Employee stock options and RSUs | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Potential dilutive securities (in shares) | 3 | 3,003 | 83 | 3,307 |
| ESPP | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Potential dilutive securities (in shares) | 20 | 416 | 12 | 385 |
Balance Sheet Components - Accounts receivable (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Accounts receivable | $ 41,163 | $ 43,324 |
| Less: Allowance for price adjustments | (18,681) | (16,700) |
| Less: Allowance for doubtful accounts | (30) | (30) |
| Accounts receivable, net | $ 22,452 | $ 26,594 |
Balance Sheet Components - Inventories (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Raw materials | $ 29,022 | $ 23,982 |
| Work in-process | 35,699 | 32,446 |
| Finished goods | 8,628 | 12,420 |
| Inventory, net | $ 73,349 | $ 68,848 |
Balance Sheet Components - Land Use Rights, Net (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Land use rights | $ 8,737 | $ 0 |
| Less: Accumulated depreciation | 0 | 0 |
| Land use rights, net | $ 8,737 | $ 0 |
Balance Sheet Components - Other long term assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Prepayments for property and equipment | $ 13,453 | $ 506 |
| Prepayment for others | 216 | 42 |
| Prepaid income tax | 4,687 | 0 |
| Investment in a privately held company | 100 | 100 |
| Office leases deposits | 527 | 388 |
| Custom deposits | 2,256 | 1,039 |
| Intangible assets | 14 | 15 |
| Goodwill | 269 | 269 |
| Other long-term assets | $ 21,522 | $ 2,359 |
Balance Sheet Components - Accrued liabilities (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Jun. 30, 2015 |
|---|---|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||||
| Accrued compensation and benefit | $ 9,940 | $ 10,211 | ||
| Warranty accrual | 1,872 | 1,495 | $ 1,596 | $ 1,957 |
| Stock rotation accrual | 1,712 | 1,988 | $ 2,056 | $ 1,894 |
| Accrued professional fees | 1,783 | 1,867 | ||
| Accrued inventory | 716 | 918 | ||
| Accrued facilities related expenses | 1,598 | 1,544 | ||
| Other accrued expenses | 6,052 | 4,567 | ||
| Accrued liabilities | $ 23,673 | $ 22,590 |
Balance Sheet Components - Product Warranty Accrual (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] | ||
| Beginning balance | $ 1,495 | $ 1,957 |
| Additions | 898 | 803 |
| Utilization | (521) | (1,164) |
| Ending balance | $ 1,872 | $ 1,596 |
Balance Sheet Components - Stock Rotation Accrual (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Stock Rotation Accrual Increae (Decrease) [Roll Forward] | ||
| Beginning balance | $ 1,988 | $ 1,894 |
| Additions | 3,986 | 4,643 |
| Utilization | (4,262) | (4,481) |
| Ending balance | $ 1,712 | $ 2,056 |
Balance Sheet Components - Other Long Term Liability (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Deferred rent | $ 567 | $ 741 |
| Other long term liabilities | $ 567 | $ 741 |
Shareholders' Equity and Share-based Compensation - Stock Options Outstanding and Exercisable (Details) - $ / shares |
3 Months Ended | 9 Months Ended |
|---|---|---|
Jun. 30, 2016 |
Mar. 31, 2017 |
|
| Share-based Compensation [Abstract] | ||
| Options, Number Outstanding (in shares) | 1,859,260 | 1,089,291 |
| Options, Weighted-Average Remaining Contractual Life (in years) | 4 years 8 months 16 days | 4 years 7 months 17 days |
| Options, Weighted-Average Exercise Price (in dollars per share) | $ 11.37 | $ 10.95 |
| Options, Number Exercisable (in shares) | 948,874 | |
| Options, Weighted-Average Exercise Price (in dollars per share) | $ 11.45 | |
| Options vested and expected to vest, Number Outstanding (in shares) | 1,082,604 | |
| Options vested and expected to vest, Weighted Average Remaining Contractual Life (in years) | 4 years 7 months 13 days | |
| Options vested and expected to vest, Weighted Average Exercise Price (in dollars per share) | $ 10.97 |
Income Taxes - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2017 |
Sep. 30, 2016 |
Mar. 31, 2016 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Jun. 30, 2016 |
|
| Related Party Transaction [Line Items] | ||||||
| Income tax expense | $ 523 | $ 1,219 | $ 2,845 | $ 3,448 | ||
| Estimated effective income tax rate | 18.00% | (2770.50%) | 30.50% | (246.10%) | ||
| Decrease in deferred tax assets | $ 6,600 | |||||
| Increase in prepaid tax asset | $ 6,600 | |||||
| Prepaid taxes, current and noncurrent | $ 5,800 | $ 5,800 | ||||
| Prepaid taxes, current | 1,100 | 1,100 | ||||
| Prepaid taxes, noncurrent | 4,687 | 4,687 | $ 0 | |||
| Unrecognized tax benefits | 6,400 | 6,400 | ||||
| Unrecognized tax benefit that would impact effective tax rate | $ 4,000 | $ 4,000 | ||||
Segment and Geographic Information - Long-lived Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Property, plant and equipment, net and land use rights, net | $ 126,072 | $ 116,084 |
| China | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Property, plant and equipment, net and land use rights, net | 68,528 | 64,272 |
| United States | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Property, plant and equipment, net and land use rights, net | 56,875 | 51,214 |
| Other Countries | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Property, plant and equipment, net and land use rights, net | $ 669 | $ 598 |
Segment and Geographic Information - Narratives (Details) |
9 Months Ended |
|---|---|
|
Mar. 31, 2017
Segment
| |
| Segment Reporting [Abstract] | |
| Number of operating segments | 1 |
| Number of reportable segments | 1 |
Commitments and Contingencies - Purchase Commitments (Details) - USD ($) $ in Millions |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Raw materials, wafers, and packaging and testing services puchase commitments | ||
| Purchase Commitment, Excluding Long-term Committment [Line Items] | ||
| Purchase commitment, amount | $ 31.2 | $ 39.6 |
| Property and equipment purchase commitments | ||
| Purchase Commitment, Excluding Long-term Committment [Line Items] | ||
| Purchase commitment, amount | $ 11.1 | $ 6.6 |
Commitments and Contingencies - Guarantees (Details) - USD ($) |
Mar. 31, 2017 |
Jun. 30, 2016 |
|---|---|---|
| Indemnification Agreement | ||
| Loss Contingencies [Line Items] | ||
| Indemnifications accrual | $ 0 | $ 0 |