v3.26.3
Fair Value Measurements - Fair value of assets and liabilities measured at fair value on a recurring basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Securities available-for-sale:    
Securities available-for-sale, at fair value $ 133,407 $ 123,852
Equity securities, at fair value 2,990 2,843
U.S. Treasuries    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,978 13,132
U.S. government and federal agencies    
Securities available-for-sale:    
Securities available-for-sale, at fair value 4,735 6,820
Corporate bonds    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,916 2,820
U.S. agency collateralized mortgage obligations    
Securities available-for-sale:    
Securities available-for-sale, at fair value 21,251 25,693
Tax-exempt municipal    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,116 1,236
U.S. agency mortgage-backed    
Securities available-for-sale:    
Securities available-for-sale, at fair value 102,411 74,151
Fair Value, Recurring    
Securities available-for-sale:    
Equity securities, at fair value 2,990 2,843
Total assets at fair value 136,627 126,870
Liabilities:    
Total liabilities at fair value 230 175
Fair Value, Recurring | Interest Rate Swap    
Securities available-for-sale:    
Interest rate swap agreements 230 175
Liabilities:    
Interest rate swap agreements 230 175
Fair Value, Recurring | U.S. Treasuries    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,978 13,132
Fair Value, Recurring | U.S. government and federal agencies    
Securities available-for-sale:    
Securities available-for-sale, at fair value 4,735 6,820
Fair Value, Recurring | Corporate bonds    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,916 2,820
Fair Value, Recurring | U.S. agency collateralized mortgage obligations    
Securities available-for-sale:    
Securities available-for-sale, at fair value 21,251 25,693
Fair Value, Recurring | Tax-exempt municipal    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,116 1,236
Fair Value, Recurring | U.S. agency mortgage-backed    
Securities available-for-sale:    
Securities available-for-sale, at fair value 102,411 74,151
Fair Value, Recurring | Fair Value, Inputs, Level 1    
Securities available-for-sale:    
Equity securities, at fair value 2,990 2,843
Total assets at fair value 2,990 2,843
Fair Value, Recurring | Fair Value, Inputs, Level 2    
Securities available-for-sale:    
Total assets at fair value 133,637 124,027
Liabilities:    
Total liabilities at fair value 230 175
Fair Value, Recurring | Fair Value, Inputs, Level 2 | Interest Rate Swap    
Securities available-for-sale:    
Interest rate swap agreements 230 175
Liabilities:    
Interest rate swap agreements 230 175
Fair Value, Recurring | Fair Value, Inputs, Level 2 | U.S. Treasuries    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,978 13,132
Fair Value, Recurring | Fair Value, Inputs, Level 2 | U.S. government and federal agencies    
Securities available-for-sale:    
Securities available-for-sale, at fair value 4,735 6,820
Fair Value, Recurring | Fair Value, Inputs, Level 2 | Corporate bonds    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,916 2,820
Fair Value, Recurring | Fair Value, Inputs, Level 2 | U.S. agency collateralized mortgage obligations    
Securities available-for-sale:    
Securities available-for-sale, at fair value 21,251 25,693
Fair Value, Recurring | Fair Value, Inputs, Level 2 | Tax-exempt municipal    
Securities available-for-sale:    
Securities available-for-sale, at fair value 1,116 1,236
Fair Value, Recurring | Fair Value, Inputs, Level 2 | U.S. agency mortgage-backed    
Securities available-for-sale:    
Securities available-for-sale, at fair value $ 102,411 $ 74,151