COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Unused lines of credit-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	$ 78,991	$ 78,506
Standby letters of credit-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	413	1,933
Commitments to make loans to sell-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	192,355	370,512
Commitments to make loans-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	20,018	24,225
Unused lines of credit-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	438,037	360,883
Standby letters of credit-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	17,200	17,524
Commitments to make loans-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	$ 17,706	$ 25,316