INVESTMENT SECURITIES, Contractual or Expected Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Maturity in years [Abstract]
Due in one year or less	$ 25,795
Due after one year through five years	181,126
Due after five years through ten years	48,069
Due after ten years	28,666
Subtotal	283,656
Mortgage-backed securities & Collateralized mortgage obligations	400,937
Amortized cost	684,593	$ 636,092
Maturity in years [Abstract]
Due in one year or less	25,664
Due after one year through five years	172,968
Due after five years through ten years	44,164
Due after ten years	24,809
Subtotal	267,605
MBS & CMO	370,160
Estimated fair value	$ 637,765	$ 632,213