COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Unused lines of credit-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	$ 54,572	$ 42,971
Standby letters of credit-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	85	40
Commitments to make loans to sell-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	30,699	34,045
Commitments to make loans-Fixed
COMMITMENTS AND CONTINGENCIES
Other commitment	17,280	4,596
Unused lines of credit-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	221,770	218,536
Standby letters of credit-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	23,507	15,532
Commitments to make loans-Variable
COMMITMENTS AND CONTINGENCIES
Other commitment	$ 6,537	$ 20,572