INVESTMENT SECURITIES, Contractual or Expected Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Maturity in years [Abstract]
Due in one year or less	$ 61,211
Due after one year through five years	174,052
Due after five years through ten years	31,938
Due after ten years	29,968
Subtotal	297,169
MBS & CMO	383,784
Amortized cost	680,953	$ 683,784
Maturity in years [Abstract]
Due in one year or less	60,021
Due after one year through five years	163,665
Due after five years through ten years	29,358
Due after ten years	26,958
Subtotal	280,002
MBS & CMO	343,793
Estimated fair value	$ 623,795	$ 618,092