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INVESTMENT SECURITIES - Available for sale securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	$ 539,157	$ 553,214
Gross Unrealized Gains	207	119
Gross Unrealized Losses	62,453	62,741
Fair Value	476,911	490,592
Agency mortgage-backed securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	319,237	327,266
Gross Unrealized Losses	40,743	40,784
Fair Value	278,494	286,482
Agency collateralized mortgage obligations
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	87,777	90,205
Gross Unrealized Losses	11,277	11,731
Fair Value	76,500	78,474
States and political subdivisions securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	59,403	60,667
Gross Unrealized Gains	207	119
Gross Unrealized Losses	2,887	3,291
Fair Value	56,723	57,495
Small Business Administration securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	72,740	75,076
Gross Unrealized Losses	7,546	6,935
Fair Value	$ 65,194	$ 68,141

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