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Investments in Securities - Available for sale securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	$ 531,892	$ 553,214
Gross Unrealized Gains	534	119
Gross Unrealized Losses	54,219	62,741
Fair Value	478,207	490,592
Agency mortgage-backed securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	316,114	327,266
Gross Unrealized Gains	7
Gross Unrealized Losses	35,890	40,784
Fair Value	280,231	286,482
Agency collateralized mortgage obligations
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	85,989	90,205
Gross Unrealized Losses	10,043	11,731
Fair Value	75,946	78,474
States and political subdivisions securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	59,141	60,667
Gross Unrealized Gains	527	119
Gross Unrealized Losses	1,531	3,291
Fair Value	58,137	57,495
Small Business Administration securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	70,648	75,076
Gross Unrealized Losses	6,755	6,935
Fair Value	$ 63,893	$ 68,141

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