BUSINESS COMBINATIONS - Unaudited Supplemental Pro Forma Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Total revenue	$ 201,318	$ 193,521
Income before income taxes	66,283	84,666
Net interest income [Member]
Business Acquisition [Line Items]
Total revenue	158,241	158,179
Non Interest Income [Member]
Business Acquisition [Line Items]
Total revenue	$ 43,077	$ 35,342