Document And Entity Information |
12 Months Ended |
|---|---|
Dec. 31, 2024 | |
| Document And Entity Information [Abstract] | |
| Document Type | DEF 14A |
| Entity Registrant Name | FRANKLIN FINANCIAL SERVICES CORPORATION |
| Entity Central Index Key | 0000723646 |
| Amendment Flag | false |
Award Timing Disclosure |
12 Months Ended |
|---|---|
Dec. 31, 2024 | |
| Award Timing Disclosures [Line Items] | |
| Award Timing MNPI Disclosure | While the Corporation does not have a formal written policy in place with regard to the timing of awards of options in relation to the disclosure of material nonpublic information, it does not seek to time equity grants to take advantage of information, either positive or negative, about the Corporation that has not been publicly disclosed. It has been the Corporation’s recent practice to grant most of our equity awards in the form of restricted stock units. |
| Award Timing MNPI Considered | false |
Insider Trading Policies and Procedures |
12 Months Ended |
|---|---|
Dec. 31, 2024 | |
| Insider Trading Policies and Procedures [Line Items] | |
| Insider Trading Policies and Procedures Adopted | true |