COMMITMENTS AND CONTINGENCIES AND FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
COMMITMENTS AND CONTINGENCIES AND FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK
Commitments to extend credit, variable interest rate	$ 659,385	$ 652,611
Commitments to extend credit, fixed interest rate	80,346	141,439
Total	739,731	794,050
Standby letters of credit	$ 26,078	$ 23,547