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, 2019	Mar. 31, 2018
Net loss
Loss from continuing operations	$ (3,337)	$ (81)
Loss from discontinued operations, net of income taxes	(9)	(22)
Net loss	$ (3,346)	$ (103)
Per common share – basic
Income (loss) from continuing operations (dollars per share)	$ (0.52)	$ (0.01)
Loss from discontinued operations (dollars per share)	0.00	0.00
Net income (loss) per common share – basic (dollars per share)	(0.52)	(0.01)
Per common share – diluted
Income (loss) from continuing operations (dollars per share)	(0.52)	(0.01)
Loss from discontinued operations (dollars per share)	0.00	0.00
Net income (loss) per common share – diluted (dollars per share)	$ (0.52)	$ (0.01)
Weighted Average Common Shares Outstanding:
Basic (shares)	6,424	6,314
Diluted (shares)	6,424	6,314