INVESTMENT SECURITIES - Amortized Cost and Estimated Fair Value of Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 147,022	$ 141,512
Gross Unrealized Gains	31	0
Gross Unrealized Losses	(20,472)	(18,781)
Estimated Fair Value	126,581	122,731
State, county and municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	33,668	31,905
Gross Unrealized Gains	2	0
Gross Unrealized Losses	(5,693)	(5,051)
Estimated Fair Value	27,977	26,854
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	113,354	109,607
Gross Unrealized Gains	29	0
Gross Unrealized Losses	(14,779)	(13,730)
Estimated Fair Value	$ 98,604	$ 95,877