Investment Securities - Securities Temporarily Impaired (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Fair Value (Estimated) (Less than 12 months)	$ 15,009	$ 23,512	$ 9,113
Unrealized Losses (Less than 12 months)	(283)	(292)	(46)
Fair Value (Estimated) (12 months or more)	232,643	234,055	251,590
Unrealized Losses (12 months or more)	(49,100)	(53,876)	(54,270)
Fair Value (Estimated)	247,652	257,567	260,703
Unrealized Losses	(49,383)	(54,168)	(54,316)
U.S. Treasury & Agency securities
Debt Securities, Available-for-sale [Line Items]
Fair Value (Estimated) (Less than 12 months)	0	0	0
Unrealized Losses (Less than 12 months)	0	0	0
Fair Value (Estimated) (12 months or more)	18,950	19,796	19,693
Unrealized Losses (12 months or more)	(5,593)	(6,246)	(6,343)
Fair Value (Estimated)	18,950	19,796	19,693
Unrealized Losses	(5,593)	(6,246)	(6,343)
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value (Estimated) (Less than 12 months)	8,974	18,544	4,593
Unrealized Losses (Less than 12 months)	(105)	(222)	(16)
Fair Value (Estimated) (12 months or more)	185,973	186,155	202,736
Unrealized Losses (12 months or more)	(36,311)	(40,804)	(41,619)
Fair Value (Estimated)	194,947	204,699	207,329
Unrealized Losses	(36,416)	(41,026)	(41,635)
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Fair Value (Estimated) (Less than 12 months)	4,862	4,968	4,520
Unrealized Losses (Less than 12 months)	(172)	(70)	(30)
Fair Value (Estimated) (12 months or more)	27,720	28,104	29,161
Unrealized Losses (12 months or more)	(7,196)	(6,826)	(6,308)
Fair Value (Estimated)	32,582	33,072	33,681
Unrealized Losses	(7,368)	$ (6,896)	$ (6,338)
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value (Estimated) (Less than 12 months)	1,173
Unrealized Losses (Less than 12 months)	(6)
Fair Value (Estimated) (12 months or more)	0
Unrealized Losses (12 months or more)	0
Fair Value (Estimated)	1,173
Unrealized Losses	$ (6)

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