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
	Mar. 31, 2020	Mar. 31, 2019
Net loss
Loss from continuing operations	$ (510)	$ (1,574)
Loss from discontinued operations, net of income taxes	(243)	(1,772)
Net loss	$ (753)	$ (3,346)
Per common share – basic
Loss from continuing operations (in dollars per share)	$ (0.08)	$ (0.24)
Loss from discontinued operations (dollars per share)	(0.04)	(0.28)
Net loss per common share – basic (dollars per share)	(0.12)	(0.52)
Per common share – diluted
Loss from continuing operations (dollars per share)	(0.08)	(0.24)
Loss from discontinued operations (dollars per share)	(0.04)	(0.28)
Net income (loss) per common share – diluted (dollars per share)	$ (0.12)	$ (0.52)
Weighted Average Common Shares Outstanding:
Basic (shares)	6,506	6,424
Diluted (shares)	6,506	6,424