EARNINGS PER SHARE, Reconciliation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net loss	$ (10,408)	$ (6,333)
Weighted-average common shares outstanding	70,665,394	68,967,875
Basic loss per share (in Dollars per share)	$ (0.15)	$ (0.09)
Add-back of interest expense on outstanding convertible notes payable, net of tax	$ 0	$ 0
Adjusted net loss	$ (10,408)	$ (6,333)
Weighted-average incremental shares related to assumed exercise of warrants and stock options, vesting of non-vested shares and ESPP share issuance	0	0
Weighted-average incremental shares assuming conversion of outstanding notes payable	0	0
Diluted weighted-average common shares outstanding	70,665,394	68,967,875
Diluted net income (loss) per share (in Dollars per share)	$ (0.15)	$ (0.09)