Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Investment securities available-for-sale
Trading	$ 4,553	$ 0
Amortized Cost	573,733	584,754
Unrealized Gains	2	5
Unrealized Losses	(101,463)	(98,023)
Fair Value	472,272	486,736
Amortized Cost	292,139	299,728
Unrealized Losses	(42,332)	(41,111)
Allowance for Credit Losses	207	213
Fair Value	249,807	258,617
Amortized Cost	865,872	884,482
Unrealized Gains	2	5
Unrealized Losses	(143,795)	(139,134)
Allowance for Credit Losses	207	213
Fair Value	722,079	745,353
Available-for-Sale accrued interest receivable	1,600	1,500
Held-to-Maturity accrued interest receivable	1,000	1,400
U. S. Treasury and agencies
Investment securities available-for-sale
Amortized Cost	839	1,119
Unrealized Gains	2	4
Unrealized Losses	(3)	(3)
Fair Value	838	1,120
Mortgage backed securities - Residential agency
Investment securities available-for-sale
Amortized Cost	513,409	524,140
Unrealized Gains		1
Unrealized Losses	(92,516)	(88,547)
Fair Value	420,893	435,594
Amortized Cost	167,168	170,125
Unrealized Losses	(29,347)	(28,498)
Allowance for Credit Losses	97	99
Fair Value	137,821	141,627
Mortgage backed securities - Commercial
Investment securities available-for-sale
Amortized Cost	1,471	1,476
Unrealized Losses	(120)	(123)
Fair Value	1,351	1,353
Asset backed securities
Investment securities available-for-sale
Amortized Cost	23	26
Unrealized Losses	(1)	(1)
Fair Value	22	25
Corporate bonds
Investment securities available-for-sale
Amortized Cost	57,991	57,993
Unrealized Losses	(8,823)	(9,349)
Fair Value	49,168	48,644
Obligations of state and political agencies.
Investment securities available-for-sale
Amortized Cost	124,971	129,603
Unrealized Losses	(12,985)	(12,613)
Allowance for Credit Losses	110	114
Fair Value	$ 111,986	$ 116,990

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