EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Basic [Abstract]
Net income	$ 15,190	$ 16,731	$ 44,000	$ 29,429
Weighted average common shares outstanding - basic (in shares)	17,931,174	18,059,174	18,012,963	18,054,678
Effect of dilutive securities [Abstract]
Stock-based compensation awards (in shares)	532,523	196,987	503,525	269,044
Weighted average common shares outstanding - diluted (in shares)	18,463,697	18,256,161	18,516,488	18,323,722
Basic earnings per share (in dollars per share)	$ 0.85	$ 0.93	$ 2.44	$ 1.63
Diluted earnings per share (in dollars per share)	$ 0.82	$ 0.92	$ 2.38	$ 1.61