COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Unused lines of credit-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	$ 31,690	$ 32,896
Standby letters of credit-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	1,734	1,759
Commitments to make loans to sell-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	236,198	47,354
Unused lines of credit-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	274,056	290,653
Standby letters of credit-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	$ 24,099	$ 24,197