STOCK COMPENSATION - Summary of Stock Option (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2021
Options
Beginning balance (in shares)	1,286,900
Grants (in shares)	48,000
Exercises (in shares)	(219,025)
Expirations (in shares)	(4,000)
Ending balance (in shares)	1,111,875
Options exercisable, end of period (in shares)	928,415
Weighted- average exercise price
Beginning balance (usd per share)	$ 13.28
Grants (usd per share)	14.18
Exercises (usd per share)	11.59
Expirations (usd per share)	19.10
Ending balance (usd per share)	13.63
Weighted-average exercise price, Options exercisable, end of period (usd per share)	$ 14.29
Weighted- average remaining contractual life (years)
Options outstanding, end of period	5 years 3 months 18 days
Options exercisable, end of period	4 years 8 months 12 days
Aggregate intrinsic value (in thousands)
Options outstanding, aggregate intrinsic Value	$ 2,693
Options exercisable, aggregate intrinsic Value	1,836
Total unrecognized stock option expense remaining (in thousands)	$ 656
Weighted-average years expected to be recognized over (in years)	1 year 8 months 12 days