COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Commitments to Extend Credit [Member]
Commitment And Contingencies [Line Items]
Commitments to extend credit	$ 691.7	$ 673.8
Standby Letters of Credit [Member]
Commitment And Contingencies [Line Items]
Commitments to extend credit	17.0	$ 20.3
SBIC [Member]
Commitment And Contingencies [Line Items]
Unfunded commitment for investment	$ 1.1