LOSS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Earnings Per Share [Abstract]
Common stock, par value (in dollars per share)	$ 0.0001		$ 0.0001		$ 0.0001
Numerator:
Loss from continuing operations, net of income taxes	$ (12,404)	$ (11,090)	$ (60,090)	$ (29,169)
(Loss) income from discontinued operations, net of income taxes	(113)	(174)	(1,053)	134
Net loss	(12,517)	(11,264)	(61,143)	(29,035)
Accrued dividends on preferred stock	(2,394)	(2,138)	(6,911)	(6,192)
Deemed dividends on preferred stock	(175)	(173)	(525)	(518)
Loss attributable to common stockholders	$ (15,086)	$ (13,575)	$ (68,579)	$ (35,745)
Denominator - Basic and Diluted:
Weighted average number of common shares outstanding, basic and diluted (in shares)	127,488	114,826	122,519	85,701
Loss per Common Share:
Loss from continuing operations, basic and diluted (in dollars per share)	$ (0.12)	$ (0.12)	$ (0.55)	$ (0.42)
Loss from discontinued operations, basic and diluted (in dollars per share)	0.00	0.00	(0.01)	0.00
Loss per common share, basic and diluted (in dollars per share)	$ (0.12)	$ (0.12)	$ (0.56)	$ (0.42)
Antidilutive securities excluded from computation of earnings per share (in shares)	12,500	14,000	16,200	15,500
Series A Preferred Stock
Class of Stock [Line Items]
Convertible preferred stock series, par value (in dollars per share)	$ 0.0001		$ 0.0001		0.0001
Series C Preferred Stock
Class of Stock [Line Items]
Convertible preferred stock series, par value (in dollars per share)	$ 0.0001		$ 0.0001		$ 0.0001