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Securities - Available for sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 510,597	$ 557,128
Gross Unrealized Gains	99	365
Gross Unrealized Losses	(50,043)	(44,902)
Fair Value	460,653	512,591
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	52,785	60,886
Gross Unrealized Losses	(1,391)	(2,053)
Fair Value	51,394	58,833
U.S. government agencies and corporations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	106,455	143,241
Gross Unrealized Losses	(12,405)	(12,967)
Fair Value	94,050	130,274
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	183,552	200,393
Gross Unrealized Gains	2	65
Gross Unrealized Losses	(23,239)	(20,540)
Fair Value	160,315	179,918
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	142,593	127,317
Gross Unrealized Gains	97	300
Gross Unrealized Losses	(8,525)	(6,790)
Fair Value	134,165	120,827
Corporate and other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	25,212	25,291
Gross Unrealized Losses	(4,483)	(2,552)
Fair Value	$ 20,729	$ 22,739

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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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