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Investment Securities - Total investment securities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Contractual maturities of securities |  |
Available for Sale, Cost Basis, Within 1 year | $ 6,872 |
Available for Sale, Cost Basis, After 1 year but within 5 years | 36,195 |
Available for Sale, Cost Basis, After 5 years but within 10 years | 39,703 |
Available for Sale, Cost Basis, Over 10 years | 100,484 |
Investment securities available for sale, Cost Basis | 183,254 | $ 184,018
Available for Sale, Fair Value, Within 1 year | 6,794 |
Available for Sale, Fair Value, After 1 year but within 5 years | 34,905 |
Available for Sale, Fair Value, After 5 years but within 10 years | 35,932 |
Available for Sale, Fair Value, Over 10 years | 87,821 |
Available for Sale, Fair Value | 165,452 | 165,711
Held to Maturity, Cost Basis, Within 1 year | 2,211 |
Held to Maturity, Cost Basis, After 1 year but within 5 years | 15,619 |
Held to Maturity, Cost Basis, After 5 years but within 10 years | 20,918 |
Held to Maturity, Cost Basis, Over 10 years | 26,219 |
Investment securities held to maturity, Cost Basis | 64,967 | 63,979
Held to Maturity, Fair Value, Within 1 year | 2,176 |
Held to Maturity, Fair Value, After 1 year but within 5 years | 14,909 |
Held to Maturity, Fair Value, After 5 years but within 10 years | 18,379 |
Held to Maturity, Fair Value, Over 10 years | 23,716 |
Held to Maturity, Fair Value, Total | 59,180 | 58,621
U.S. Agency |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 6,001 | 6,035
Available for Sale, Fair Value | 5,266 | 5,339
Investment securities held to maturity, Cost Basis | 2,500 | 2,500
Held to Maturity, Fair Value, Total | 2,109 | 2,121
Municipal |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 10,840 | 11,159
Available for Sale, Fair Value | 10,028 | 10,360
Investment securities held to maturity, Cost Basis | 32,779 | 32,787
Held to Maturity, Fair Value, Total | 29,870 | 29,990
Corporate bonds and other securities |  |
Contractual maturities of securities |  |
Investment securities held to maturity, Cost Basis | 4,415 | 4,470
Held to Maturity, Fair Value, Total | 4,259 | 4,297
U.S. Agency mortgage-backed securities |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 105,820 | 104,820
Available for Sale, Fair Value | 93,094 | 93,075
Investment securities held to maturity, Cost Basis | 25,273 | 24,222
Held to Maturity, Fair Value, Total | 22,942 | 22,213
Corporate bonds. |  |
Contractual maturities of securities |  |
Investment securities available for sale, Cost Basis | 60,593 | 62,004
Available for Sale, Fair Value | $ 57,064 | $ 56,937

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