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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings (loss) per share (EPS):
Income (loss) from continuing operations (in dollars per share)	$ (0.06)	$ (0.14)	$ 0.12	$ (0.38)
Income (loss) from discontinued operations (in dollars per share)	0.00	(0.07)	0.03	(0.11)
Basic and diluted earnings (loss) per share	$ (0.06)	$ (0.21)	$ 0.15	$ (0.49)
EPS numerator - basic and diluted:
Income (loss) from continuing operations	$ (2,029)	$ (4,571)	$ 4,091	$ (12,247)
Income (loss) from discontinued operations, net of income taxes	(55)	(2,448)	864	(3,690)
Net income (loss)	$ (2,084)	$ (7,019)	$ 4,955	$ (15,937)
EPS denominator:
Weighted-average common stock outstanding - basic (in shares)	34,687	32,910	33,784	32,769
Common stock equivalents: stock options and other stock-based awards (a)	0	0	11	0
Weighted-average number of common stock outstanding - diluted (in shares)	34,687	32,910	33,795	32,769