EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Basic, numerator:
Net loss	$ (5,193)	$ (13,395)
Effect of unvested restricted stock unit awards	(39)	(38)
Adjusted net loss	(5,232)	(13,433)
Basic, denominator:
Weighted-average shares	25,876,928	25,638,333
Loss per common share (in dollars per share)	$ (0.20)	$ (0.52)
Diluted, numerator:
Net loss	(5,193)	(13,395)
Effect of unvested restricted stock unit awards	(39)	(38)
Adjusted net loss	$ (5,232)	$ (13,433)
Diluted, denominator:
Weighted-average shares	25,876,928	25,638,333
Adjusted weighted-average shares and assumed conversions	25,876,928	25,638,333
Loss per common share (in dollars per share)	$ (0.20)	$ (0.52)
Outstanding stock awards not included in calculation of diluted loss per share (in shares)	800,000	700,000