Investment Securities - Held-to-Maturity and Available-for-Sale, Scheduled Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Securities, Held-to-Maturity, Amortized Cost	$ 140,112	$ 145,777
Securities Held-to-Maturity, Gross Unrealized Gains	0	0
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss	(19,520)	(17,500)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss	120,592	128,277
Debt Securities, Available-for-sale [Abstract]
Investment securities available-for-sale, amortized cost	389,791	395,727
Securities Available-for-Sale, Gross Unrealized Gain	138	155
Securities Available-for-Sale, Gross Unrealized Losses	(46,372)	(43,598)
Allowance for credit losses	781	731
Debt securities	342,776	351,553
Residential mortgage-backed securities
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Securities Held-to-Maturity, Amortized Cost, After 1 Year to 5 Years	1,469	1,871
Securities Held-to-Maturity, Gross Unrealized Gains, After 1 Year to 5 Years	0	0
Securities Held-to-Maturity, Gross Unrealized Losses, After 1 Year to 5 Years	(52)	(62)
Securities Held-to-Maturity, Allowance for Credit Loss, After 1 Year to 5 Years	0	0
Securities Held-to-Maturity, Fair Value, After 1 Year to 5 Years	1,417	1,809
Securities Held-to-Maturity, Amortized Cost, After 5 Years to 10 Years	11,344	12,047
Securities Held-to-Maturity, Gross Unrealized Gains, After 5 Years to 10 Years	0	0
Securities Held-to-Maturity, Gross Unrealized Losses, After 5 Years to 10 Years	(598)	(462)
Securities, Held-to-Maturity, Allowance for Credit Loss, After 5 Years To 10 Years	0	0
Securities Held-to-Maturity, Fair Value, After 5 Years to 10 Years	10,746	11,585
Securities Held-to-Maturity, Amortized Cost, Over 10 Years	127,299	131,859
Securities Held-to-Maturity, Gross Unrealized Gain, Over 10 Years	0	0
Securities Held-to-Maturity, Gross Unrealized Losses, Over 10 Years	(18,870)	(16,976)
Securities Held-to-maturity, Allowance for Credit Loss, Over 10 Years	0	0
Securities Held-to-Maturity, Fair Value, After 10 years	108,429	114,883
Securities, Held-to-Maturity, Amortized Cost	140,112	145,777
Securities Held-to-Maturity, Gross Unrealized Gains	0	0
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss	(19,520)	(17,500)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss	120,592	128,277
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years	437	567
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years	0	0
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years	(15)	(20)
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years	0	0
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years	422	547
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years	12,511	13,653
Securities Available-for-Sale,Gross Unrealized Gain, After 5 Years to 10 Years	0	0
Securities Available-for-Sale, Gross Unrealized Losses, After 5 Years to 10 Years	(983)	(964)
Securities Available-for-Sale, Allowance for Credit Loss, After 5 Years to 10 Years	0	0
Securities Available-for-Sale, Fair Value, After 5 Years to 10 Years	11,528	12,689
Securities Available-for-Sale, Amortized Cost, Over 10 Years	296,722	285,628
Securities Available-for-Sale,Gross Unrealized Gain, Over 10 Years	128	131
Securities Available-for-Sale, Gross Unrealized Losses, Over 10 Years	(38,444)	(34,443)
Securities Available-for-Sale, Allowance for Credit Loss, After 10 Years	0	0
Securities Available-for-Sale, Fair Value, Over 10 Years	258,406	251,316
Investment securities available-for-sale, amortized cost	309,670	299,848
Securities Available-for-Sale, Gross Unrealized Gain	128	131
Securities Available-for-Sale, Gross Unrealized Losses	(39,442)	(35,427)
Allowance for credit losses	0	0
Debt securities	270,356	264,552
State and political subdivisions
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, Within 1 Year	1,299	1,030
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year	0	0
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year	(23)	(1)
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year	0	0
Securities Available-for-Sale, Fair Value, Within 1 Year	1,276	1,029
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years		1,298
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years		0
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years		(26)
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years		0
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years		1,272
Investment securities available-for-sale, amortized cost	1,299	2,328
Securities Available-for-Sale, Gross Unrealized Gain	0	0
Securities Available-for-Sale, Gross Unrealized Losses	(23)	(27)
Allowance for credit losses	0	0
Debt securities	1,276	2,301
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years	194	241
Securities Available-for-Sale,Gross Unrealized Gain, After 5 Years to 10 Years	0	0
Securities Available-for-Sale, Gross Unrealized Losses, After 5 Years to 10 Years	(9)	(11)
Securities Available-for-Sale, Allowance for Credit Loss, After 5 Years to 10 Years	0	0
Securities Available-for-Sale, Fair Value, After 5 Years to 10 Years	185	230
Securities Available-for-Sale, Amortized Cost, Over 10 Years	1,822	1,960
Securities Available-for-Sale,Gross Unrealized Gain, Over 10 Years	0	0
Securities Available-for-Sale, Gross Unrealized Losses, Over 10 Years	(177)	(189)
Securities Available-for-Sale, Allowance for Credit Loss, After 10 Years	0	0
Securities Available-for-Sale, Fair Value, Over 10 Years	1,645	1,771
Investment securities available-for-sale, amortized cost	2,016	2,201
Securities Available-for-Sale, Gross Unrealized Gain	0	0
Securities Available-for-Sale, Gross Unrealized Losses	(186)	(200)
Allowance for credit losses	0	0
Debt securities	1,830	2,001
Corporate bonds
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, Within 1 Year	3,494	18,011
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year	1	1
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year	(50)	(176)
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year	(3)	(27)
Securities Available-for-Sale, Fair Value, Within 1 Year	3,442	17,809
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years	13,312	13,339
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years	9	23
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years	(594)	(671)
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years	(37)	(43)
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years	12,690	12,648
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years	60,000	60,000
Securities Available-for-Sale,Gross Unrealized Gain, After 5 Years to 10 Years	0	0
Securities Available-for-Sale, Gross Unrealized Losses, After 5 Years to 10 Years	(6,077)	(7,097)
Securities Available-for-Sale, Allowance for Credit Loss, After 5 Years to 10 Years	(741)	(661)
Securities Available-for-Sale, Fair Value, After 5 Years to 10 Years	53,182	52,242
Investment securities available-for-sale, amortized cost	76,806	91,350
Securities Available-for-Sale, Gross Unrealized Gain	10	24
Securities Available-for-Sale, Gross Unrealized Losses	(6,721)	(7,944)
Allowance for credit losses	781	731	$ 1,537	$ 1,140
Debt securities	$ 69,314	$ 82,699