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Investment Securities - Total investment securities (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Contractual maturities of securities |  |
Available for Sale, Cost Basis, Within 1 year | $ 10,170 |
Available for Sale, Cost Basis, After 1 year but within 5 years | 31,486 |
Available for Sale, Cost Basis, After 5 years but within 10 years | 37,767 |
Available for Sale, Cost Basis, Over 10 years | 98,344 |
Investment securities available for sale, Cost Basis | 177,767 | $ 184,018
Available for Sale, Fair Value, Within 1 year | 10,135 |
Available for Sale, Fair Value, After 1 year but within 5 years | 30,353 |
Available for Sale, Fair Value, After 5 years but within 10 years | 35,346 |
Available for Sale, Fair Value, Over 10 years | 88,757 |
Available for Sale, Fair Value | 164,591 | 165,711
Held to Maturity, Cost Basis, Within 1 year | 3,541 |
Held to Maturity, Cost Basis, After 1 year but within 5 years | 14,606 |
Held to Maturity, Cost Basis, After 5 years but within 10 years | 19,746 |
Held to Maturity, Cost Basis, Over 10 years | 27,558 |
Investment securities held to maturity, Cost Basis | 65,451 | 63,979
Held to Maturity, Fair Value, Within 1 year | 3,516 |
Held to Maturity, Fair Value, After 1 year but within 5 years | 14,321 |
Held to Maturity, Fair Value, After 5 years but within 10 years | 18,060 |
Held to Maturity, Fair Value, Over 10 years | 25,993 |
Held to Maturity, Fair Value, Total | 61,890 | 58,621
U.S. Agency |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 5,404 | 6,035
Available for Sale, Fair Value | 4,857 | 5,339
Investment securities held to maturity, Cost Basis | 2,500 | 2,500
Held to Maturity, Fair Value, Total | 2,216 | 2,121
U.S. Agency mortgage-backed securities |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 103,083 | 104,820
Available for Sale, Fair Value | 93,611 | 93,075
Investment securities held to maturity, Cost Basis | 27,015 | 24,222
Held to Maturity, Fair Value, Total | 25,553 | 22,213
Municipal |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 9,163 | 11,159
Available for Sale, Fair Value | 8,674 | 10,360
Investment securities held to maturity, Cost Basis | 32,521 | 32,787
Held to Maturity, Fair Value, Total | 30,783 | 29,990
Corporate bonds and other securities |  |
Contractual maturities of securities |  |
Investment securities held to maturity, Cost Basis | 3,415 | 4,470
Held to Maturity, Fair Value, Total | 3,338 | 4,297
Corporate bonds |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 60,117 | 62,004
Available for Sale, Fair Value | $ 57,449 | $ 56,937

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