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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income (loss)
Income (loss) from continuing operations	$ 3,173	$ (1,918)	$ 4,502	$ (26,100)
Loss from discontinued operations, net of income taxes	(374)	(2,956)	(1,004)	(6,716)
Net income (loss)	$ 2,799	$ (4,874)	$ 3,498	$ (32,816)
Per common share – basic
Income (loss) from continuing operations (in dollars per share)	$ 0.48	$ (0.30)	$ 0.68	$ (4.04)
Loss from discontinued operations (in dollars per share)	(0.06)	(0.45)	(0.15)	(1.04)
Net income (loss) per common share – basic (in dollars per share)	0.42	(0.75)	0.53	(5.08)
Per common share – diluted
Income (loss) from continuing operations (in dollars per share)	0.48	(0.30)	0.67	(4.04)
Loss from discontinued operations (in dollars per share)	(0.06)	(0.45)	(0.15)	(1.04)
Net income (loss) per common share – diluted (in dollars per share)	$ 0.42	$ (0.75)	$ 0.52	$ (5.08)
Weighted Average Common Shares Outstanding:
Basic (in shares)	6,577	6,470	6,606	6,455
Diluted (in shares)	6,626	6,470	6,676	6,455