Investment Securities Security Type - Available for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	$ 640,936	$ 673,370
Securities available for sale, gross unrealized gains	24	33
Securities available for sale, gross unrealized losses	(103,104)	(128,838)
Securities available for sale, fair value	537,856	544,565
State and political subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	214,189	215,942
Securities available for sale, gross unrealized gains	14	0
Securities available for sale, gross unrealized losses	(39,145)	(41,797)
Securities available for sale, fair value	175,058	174,145
Collateralized mortgage obligations [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	260,546	278,754
Securities available for sale, gross unrealized gains	0	0
Securities available for sale, gross unrealized losses	(43,449)	(59,490)
Securities available for sale, fair value	217,097	219,264
Mortgage-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	137,628	145,992
Securities available for sale, gross unrealized gains	2	0
Securities available for sale, gross unrealized losses	(19,652)	(26,173)
Securities available for sale, fair value	117,978	119,819
Collateralized loan obligations [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	14,823	18,932
Securities available for sale, gross unrealized gains	8	33
Securities available for sale, gross unrealized losses	0	0
Securities available for sale, fair value	14,831	18,965
Corporate notes [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	13,750	13,750
Securities available for sale, gross unrealized gains	0	0
Securities available for sale, gross unrealized losses	(858)	(1,378)
Securities available for sale, fair value	$ 12,892	$ 12,372

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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