Investment Securities - Amortized Cost and Fair Values of Investment Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Available for sale (AFS):
Amortized Cost	$ 195,377
Fair value	187,245	$ 190,945
Investment equity securities:
Fair value	1,112	1,122
Total debt securities
Available for sale (AFS):
Amortized Cost	195,377	199,041
Gross unrealized gains	307	382
Gross unrealized losses	(8,439)	(8,478)
Fair value	187,245	190,945
U.S. Government and agency securities
Available for sale (AFS):
Amortized Cost	4,000	4,000
Gross unrealized gains	0	3
Gross unrealized losses	(67)	(60)
Fair value	3,933	3,943
Mortgage-backed securities
Available for sale (AFS):
Amortized Cost	19,829	15,457
Gross unrealized gains	73	120
Gross unrealized losses	(279)	(222)
Fair value	19,623	15,355
State and political securities
Available for sale (AFS):
Amortized Cost	114,357	120,740
Gross unrealized gains	92	162
Gross unrealized losses	(5,369)	(5,287)
Fair value	109,080	115,615
Other debt securities
Available for sale (AFS):
Amortized Cost	57,191	58,844
Gross unrealized gains	142	97
Gross unrealized losses	(2,724)	(2,909)
Fair value	54,609	56,032
Equity securities
Investment equity securities:
Amortized Cost	1,300	1,300
Gross unrealized gains	0	0
Gross unrealized losses	(188)	(178)
Fair value	$ 1,112	$ 1,122

Equity Securities, FV-NI, Accumulated Unrealized Gain

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Equity Securities, FV-NI, Accumulated Unrealized Loss

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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