EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Basic and Diluted Earnings per Share [Line Items]
Net income (loss) from continuing operations	$ (8,891)	$ (37,241)	$ 5,960	$ (72,534)	$ (23,163)	$ (2,342)	$ (4,196)	$ 44,521	$ (112,706)	$ 14,820	$ 2,255
Weighted-average common shares outstanding (in shares)									25,027,358	25,138,039	25,006,211
Weighted-average common shares, diluted (in shares)									25,027,358	25,582,527	25,622,812
Earnings per common share from continuing operations, basic (in dollars per share)	$ (0.36)	$ (1.49)	$ 0.24	$ (2.90)	$ (0.93)	$ (0.09)	$ (0.17)	$ 1.77	$ (4.50)	$ 0.59	$ 0.09
Earnings per common share from continuing operations, diluted (in dollars per share)	$ (0.36)	$ (1.49)	$ 0.24	$ (2.90)	$ (0.93)	$ (0.09)	$ (0.17)	$ 1.74	(4.50)	0.58	0.09
Earnings per common share from discontinued operations, basic (in dollars per share)									0	0	(0.08)
Earnings per common share from discontinued operations, diluted (in dollars per share)									0	0	(0.07)
Gain on sale of discontinued operations, basic (in dollars per share)									0	0	1.10
Gain on sale of discontinued operations, diluted (in dollar per share)									0	0	1.07
Earnings per common share, basic (in dollars per share)									(4.50)	0.59	1.11
Earnings per common share, diluted (in dollars per share)									$ (4.50)	$ 0.58	$ 1.08
Awards excluded from diluted calculation (in shares)									618,379	63,897	2,681
Restricted Stock Awards
Basic and Diluted Earnings per Share [Line Items]
Add dilutive effect of restricted stock awards (in shares)									0	232,450	273,544
Stock Options
Basic and Diluted Earnings per Share [Line Items]
Add dilutive effect of restricted stock awards (in shares)									0	212,038	343,057