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, 2018	Mar. 31, 2017
Earnings (loss) per share (EPS):
Income (loss) from continuing operations (in dollars per share)	$ (0.09)	$ (0.01)
Income (loss) from discontinued operations (in dollars per share)	0.42	(0.03)
Basic and diluted earnings (loss) per share	$ 0.33	$ (0.04)
EPS numerator - basic and diluted:
Income (loss) from continuing operations	$ (2,897)	$ (479)
Income (loss) from discontinued operations, net of income taxes	13,618	(835)
Net income (loss)	$ 10,721	$ (1,314)
EPS denominator:
Weighted-average common stock outstanding - basic (in shares)	32,146	32,161
Common stock equivalents: stock options and other stock-based awards (a)	0	0
Weighted-average number of common stock outstanding - diluted (in shares)	32,146	32,161