Subsequent Events	9 Months Ended
Sep. 30, 2024
Subsequent Event [Abstract]
Subsequent Event	Note 17. Subsequent Events On October 9, 2024, Farmers and Merchants Trust Company of Chambersburg (the “Bank”), a wholly-owned subsidiary of Franklin Financial Services Corporation (NASDAQ: FRAF), completed a repositioning of selected investment securities within its portfolio as previously reported on Form 8-K filed by the Corporation on October 18, 2024. The Bank sold approximately $46.7 million in book value of available-for-sale investment securities, consisting of lower yielding U.S. Treasury debt, for an estimated after-tax loss of approximately $3.4 million. Despite the loss, the Bank currently expects to make a profit for the 2024 fiscal year. The investment securities sold had an average book yield of approximately 1.26% with a weighted average remaining life of approximately 3.79 years. Net proceeds of approximately $42.4 million from the sale were used to purchase higher-yielding investment securities that were all classified as available-for-sale. The investment securities purchased consisted of U.S. Agency residential mortgage-backed securities and private label residential mortgage-backed securities. The available-for-sale investment securities purchased had an average book yield of approximately 4.62% with a weighted average remaining life of approximately 7.56 years. At September 30, 2024 the Bank did not have the intent to sell these securities and did not believe it would be required to sell these securities prior to a recovery of their fair value to amortized cost. In October 2024, the Bank paid off $40.0 million of BTFP loans prior to the January 2025 maturity date.

Subsequent Events

9 Months Ended

Sep. 30, 2024

Note 17. Subsequent Events

On October 9, 2024, Farmers and Merchants Trust Company of Chambersburg (the “Bank”), a wholly-owned subsidiary of Franklin Financial Services Corporation (NASDAQ: FRAF), completed a repositioning of selected investment securities within its portfolio as previously reported on Form 8-K filed by the Corporation on October 18, 2024. The Bank sold approximately $46.7 million in book value of available-for-sale investment securities, consisting of lower yielding U.S. Treasury debt, for an estimated after-tax loss of approximately $3.4 million. Despite the loss, the Bank currently expects to make a profit for the 2024 fiscal year. The investment securities sold had an average book yield of approximately 1.26% with a weighted average remaining life of approximately 3.79 years. Net proceeds of approximately $42.4 million from the sale were used to purchase higher-yielding investment securities that were all classified as available-for-sale. The investment securities purchased consisted of U.S. Agency residential mortgage-backed securities and private label residential mortgage-backed securities. The available-for-sale investment securities purchased had an average book yield of approximately 4.62% with a weighted average remaining life of approximately 7.56 years.

At September 30, 2024 the Bank did not have the intent to sell these securities and did not believe it would be required to sell these securities prior to a recovery of their fair value to amortized cost.

In October 2024, the Bank paid off $40.0 million of BTFP loans prior to the January 2025 maturity date.