EARNINGS (LOSS) 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, 2018	Mar. 31, 2017
Net income (loss)
Income (loss) from continuing operations	$ (81)	$ 1,348
Loss from discontinued operations, net of income taxes	(22)	(15)
Net income (loss)	$ (103)	$ 1,333
Per common share – basic
Income (loss) from continuing operations (dollars per share)	$ (0.01)	$ 0.22
Loss from discontinued operations (dollars per share)	0.00	0.00
Net income (loss) per common share – basic (dollars per share)	(0.01)	0.22
Per common share – diluted
Income (loss) from continuing operations (dollars per share)	(0.01)	0.21
Loss from discontinued operations (dollars per share)	0.00	0.00
Net income (loss) per common share – diluted (dollars per share)	$ (0.01)	$ 0.21
Weighted Average Common Shares Outstanding:
Basic (shares)	6,314	6,233
Diluted (shares)	6,314	6,440