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Investment Securities - Held-to-Maturity and Available-for-Sale, Scheduled Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract]
Securities, Held-to-Maturity, Amortized Cost	$ 126,040	$ 134,111
Securities Held-to-Maturity, Gross Unrealized Gains	12	0
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss	(14,148)	(19,104)
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	111,904	115,007
Debt Securities, Available-for-sale [Abstract]
Investment securities available-for-sale, amortized cost	399,044	402,651
Securities Available-for-Sale, Gross Unrealized Gain	1,282	140
Securities Available-for-Sale, Gross Unrealized Losses	(31,915)	(44,591)
Allowance for credit losses	18	839
Debt securities	368,393	357,361
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	649	1,114
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	(8)	(24)
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	641	1,090
Securities Held-to-Maturity, Amortized Cost, After 5 Years to 10 Years	11,337	10,208
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	(304)	(450)
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	11,033	9,758
Securities Held-to-Maturity, Amortized Cost, Over 10 Years	114,054	122,789
Securities Held-to-Maturity, Gross Unrealized Gain, Over 10 Years	12	0
Securities Held-to-Maturity, Gross Unrealized Losses, Over 10 Years	(13,836)	(18,630)
Securities Held-to-maturity, Allowance for Credit Loss, Over 10 Years	0	0
Securities Held-to-Maturity, Fair Value, After 10 years	100,230	104,159
Securities, Held-to-Maturity, Amortized Cost	126,040	134,111
Securities Held-to-Maturity, Gross Unrealized Gains	12	0
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss	(14,148)	(19,104)
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	111,904	115,007
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, Within 1 Year	1	20
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year		0
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year	0	0
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year	0	0
Securities Available-for-Sale, Fair Value, Within 1 Year	1	20
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years	166	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	(2)	(6)
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	164	292
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years	9,547	11,260
Securities Available-for-Sale,Gross Unrealized Gain, After 5 Years to 10 Years		0
Securities Available-for-Sale, Gross Unrealized Losses, After 5 Years to 10 Years	(455)	(791)
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	9,092	10,469
Securities Available-for-Sale, Amortized Cost, Over 10 Years	310,460	311,126
Securities Available-for-Sale,Gross Unrealized Gain, Over 10 Years	1,167	119
Securities Available-for-Sale, Gross Unrealized Losses, Over 10 Years	(27,680)	(38,645)
Securities Available-for-Sale, Allowance for Credit Loss, After 10 Years	0	0
Securities Available-for-Sale, Fair Value, Over 10 Years	283,947	272,600
Investment securities available-for-sale, amortized cost	320,174	322,704
Securities Available-for-Sale, Gross Unrealized Gain	1,167	119
Securities Available-for-Sale, Gross Unrealized Losses	(28,137)	(39,442)
Allowance for credit losses	0	0
Debt securities	293,204	283,381
State and political subdivisions
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, Within 1 Year		1,300
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year		0
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year		(5)
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year		0
Securities Available-for-Sale, Fair Value, Within 1 Year		1,295
Investment securities available-for-sale, amortized cost		1,300
Securities Available-for-Sale, Gross Unrealized Gain		0
Securities Available-for-Sale, Gross Unrealized Losses		(5)
Allowance for credit losses		0
Debt securities		1,295
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years	89	155
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	(1)	(4)
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	88	151
Securities Available-for-Sale, Amortized Cost, Over 10 Years	1,447	1,663
Securities Available-for-Sale,Gross Unrealized Gain, Over 10 Years	0	0
Securities Available-for-Sale, Gross Unrealized Losses, Over 10 Years	(86)	(129)
Securities Available-for-Sale, Allowance for Credit Loss, After 10 Years	0	0
Securities Available-for-Sale, Fair Value, Over 10 Years	1,361	1,534
Investment securities available-for-sale, amortized cost	1,536	1,818
Securities Available-for-Sale, Gross Unrealized Gain	0	0
Securities Available-for-Sale, Gross Unrealized Losses	(87)	(133)
Allowance for credit losses	0	0
Debt securities	1,449	1,685
Corporate bonds
Debt Securities, Available-for-sale [Abstract]
Securities Available-for-Sale, Amortized Cost, Within 1 Year	7,475	5,905
Securities Available-for-Sale,Gross Unrealized Gain, Within 1 Year	3	5
Securities Available-for-Sale, Gross Unrealized Losses, Within 1 Year	(70)	(58)
Securities Available-for-Sale, Allowance for Credit Loss, Within 1 Year	(10)	(6)
Securities Available-for-Sale, Fair Value, Within 1 Year	7,398	5,846
Securities Available-for-Sale, Amortized Cost, After 1 Year to 5 Years	69,359	10,924
Securities Available-for-Sale,Gross Unrealized Gain, After 1 Year to 5 Years	112	16
Securities Available-for-Sale, Gross Unrealized Losses, After 1 Year to 5 Years	(3,621)	(303)
Securities Available-for-sale, Allowance for Credit Loss, After 1 Year to 5 Years	(7)	(31)
Securities Available-for-Sale, Fair Value, After 1 Year to 5 Years	65,843	10,606
Securities Available-for-Sale, Amortized Cost, After 5 Years to 10 Years	500	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	0	(4,650)
Securities Available-for-Sale, Allowance for Credit Loss, After 5 Years to 10 Years	(1)	(802)
Securities Available-for-Sale, Fair Value, After 5 Years to 10 Years	499	54,548
Investment securities available-for-sale, amortized cost	77,334	76,829
Securities Available-for-Sale, Gross Unrealized Gain	115	21
Securities Available-for-Sale, Gross Unrealized Losses	(3,691)	(5,011)
Allowance for credit losses	18	839	$ 642	$ 731
Debt securities	$ 73,740	$ 71,000

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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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