EARNINGS (LOSS) PER SHARE (Computation of basic and diluted earnings (loss) per share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings (loss) per share (EPS):
Income (loss) from continuing operations (in dollars per share)	$ (0.10)	$ (0.20)
Income (loss) from discontinued operations (in dollars per share)	0.00	(0.01)
Basic and diluted earnings (loss) per share	$ (0.10)	$ (0.21)
EPS numerator - basic and diluted:
Income (loss) from continuing operations	$ (3,570)	$ (6,654)
Income (loss) from discontinued operations, net of income taxes	83	(184)
Net income (loss)	$ (3,487)	$ (6,838)
EPS denominator:
Weighted-average common stock outstanding - basic (in shares)	34,631	33,053
Common stock equivalents: stock options and other stock-based awards (a)	0	0
Weighted-average number of common stock outstanding - diluted (in shares)	34,631	33,053