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		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings (loss) per share (EPS):
Income (loss) from continuing operations (in dollars per share)	$ (0.10)	$ 0.38	$ (0.21)	$ 0.18
Income (loss) from discontinued operations (in dollars per share)	0.01	0.03	0.01	0.03
Basic and diluted earnings (loss) per share	$ (0.09)	$ 0.41	$ (0.20)	$ 0.21
EPS numerator - basic and diluted:
Income (loss) from continuing operations	$ (3,347)	$ 12,774	$ (6,917)	$ 6,120
Income (loss) from discontinued operations, net of income taxes	209	1,103	292	919
Net income (loss)	$ (3,138)	$ 13,877	$ (6,625)	$ 7,039
EPS denominator:
Weighted-average common stock outstanding - basic (in shares)	33,252	33,525	33,434	33,296
Common stock equivalents: stock options and other stock-based awards (a)	0	0	0	0
Weighted-average number of common stock outstanding - diluted (in shares)	33,252	33,525	33,434	33,296