INVESTMENT SECURITIES - Schedule of Held-to-Maturity Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Estimated Fair Value
Less than 12 months, estimated fair value	$ 48,983	$ 73,202
12 months or more, estimated fair value	65,555	0
Total estimated fair value	114,538	73,202
Unrealized Losses
Less than 12 months, unrealized losses	(3,413)	(1,648)
12 months or more, unrealized losses	(16,913)	0
Total unrealized losses	(20,326)	(1,648)
State, county and municipal securities
Estimated Fair Value
Less than 12 months, estimated fair value	16,512	3,707
12 months or more, estimated fair value	10,013	0
Total estimated fair value	26,525	3,707
Unrealized Losses
Less than 12 months, unrealized losses	(1,488)	(198)
12 months or more, unrealized losses	(3,892)	0
Total unrealized losses	(5,380)	(198)
Mortgage-backed securities
Estimated Fair Value
Less than 12 months, estimated fair value	32,471	69,495
12 months or more, estimated fair value	55,542	0
Total estimated fair value	88,013	69,495
Unrealized Losses
Less than 12 months, unrealized losses	(1,925)	(1,450)
12 months or more, unrealized losses	(13,021)	0
Total unrealized losses	$ (14,946)	$ (1,450)