EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Basic [Abstract]
Net income	$ 13,650	$ 5,615	$ 28,810	$ 12,698
Weighted average common shares outstanding - basic (in shares)	18,039,553	18,061,705	18,054,288	18,052,405
Effect of dilutive securities [Abstract]
Stock-based compensation awards (in shares)	513,497	162,925	484,881	290,871
Weighted average common shares outstanding - diluted (in shares)	18,553,050	18,224,630	18,539,169	18,343,276
Basic earnings per share (in dollars per share)	$ 0.76	$ 0.31	$ 1.60	$ 0.70
Diluted earnings per share (in dollars per share)	$ 0.74	$ 0.31	$ 1.55	$ 0.69