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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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