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INVESTMENT SECURITIES - Available for sale securities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	$ 571,993	$ 594,564
Gross Unrealized Gains	1,770	138
Gross Unrealized Losses	42,415	61,329
Fair Value	531,348	533,373
Agency mortgage-backed securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	331,285	346,712
Gross Unrealized Gains	668	69
Gross Unrealized Losses	27,308	40,874
Fair Value	304,645	305,907
Agency collateralized mortgage obligations
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	121,636	123,395
Gross Unrealized Gains	927
Gross Unrealized Losses	6,550	9,771
Fair Value	116,013	113,624
States and political subdivisions securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	56,639	58,608
Gross Unrealized Gains	156	69
Gross Unrealized Losses	3,049	2,729
Fair Value	53,746	55,948
Small Business Administration securities
AVAILABLE-FOR-SALE SECURITIES:
Amortized Cost	62,433	65,849
Gross Unrealized Gains	19
Gross Unrealized Losses	5,508	7,955
Fair Value	$ 56,944	$ 57,894

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