INVESTMENT SECURITIES - Amortized Cost and Estimated Fair Value of Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 134,175	$ 134,864
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(18,082)	(20,326)
Estimated Fair Value	116,093	114,538
State, county and municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	31,905	31,905
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4,575)	(5,380)
Estimated Fair Value	27,330	26,525
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	102,270	102,959
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(13,507)	(14,946)
Estimated Fair Value	$ 88,763	$ 88,013