INVESTMENT SECURITIES - Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 89,942	$ 91,229
Gross Unrecognized Gains	4	6
Gross Unrecognized Losses	19,676	17,973
Estimated Fair Value	70,270	73,262
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	500	600
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	34	35
Estimated Fair Value	466	565
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	89,442	90,629
Gross Unrecognized Gains	4	6
Gross Unrecognized Losses	19,642	17,938
Estimated Fair Value	$ 69,804	$ 72,697