EARNINGS PER COMMON SHARE - Basic and Diluted Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income (loss)
Income (loss) from continuing operations	$ 1,839	$ (22,616)	$ 1,329	$ (24,190)
Loss from discontinued operations, net of income taxes	(387)	(1,980)	(630)	(3,752)
Net income (loss)	$ 1,452	$ (24,596)	$ 699	$ (27,942)
Per common share – basic
Loss from continuing operations (in dollars per share)	$ 0.28	$ (3.49)	$ 0.21	$ (3.75)
Loss from discontinued operations (dollars per share)	(0.06)	(0.31)	(0.10)	(0.58)
Net loss per common share – basic (dollars per share)	0.22	(3.80)	0.11	(4.33)
Per common share – diluted
Loss from continuing operations (dollars per share)	0.28	(3.49)	0.21	(3.75)
Loss from discontinued operations (dollars per share)	(0.06)	(0.31)	(0.10)	(0.58)
Net income (loss) per common share – diluted (dollars per share)	$ 0.22	$ (3.80)	$ 0.11	$ (4.33)
Weighted Average Common Shares Outstanding:
Basic (shares)	6,649	6,472	6,506	6,448
Diluted (shares)	6,704	6,472	6,586	6,448