STOCK-BASED COMPENSATION - Schedule of Stock Option Activity (Details) - Stock Option - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Options
Beginning Balance, Options (in shares)	6,635,597
Granted, Options (in shares)	562,810
Exercised, Options (in shares)	0
Forfeited and expired, Options (in shares)	(1,933,037)
Ending Balance, Options (in shares)	5,265,370	6,635,597
Weighted Average Exercise Price
Beginning Balance, Weighted Average Exercise Price (in USD per share)	$ 6.46
Granted, Weighted Average Exercise Price (in USD per share)	1.26
Exercised, Weighted Average Exercise Price (in USD per share)	0.00
Forfeited and expired, Weighted Average Exercise Price (in USD per share)	6.79
Ending Balance, Weighted Average Exercise Price (in USD per share)	$ 5.78	$ 6.46
Aggregate Intrinsic Value	$ 0	$ 1,600
Weighted Average Remaining Contractual Term	4 years 4 months 26 days	5 years 9 months 26 days
Outstanding options less expected forfeitures, Options (in shares)	5,132,477
Outstanding options less expected forfeitures, Weighted Average Exercise Price (in USD per share)	$ 5.85
Outstanding options less expected forfeitures, Aggregate Intrinsic Value	$ 0
Outstanding options less expected forfeitures, Weighted Average Remaining Contractual Life	4 years 3 months 20 days
Exercisable, Options (in shares)	4,035,588
Exercisable, Weighted Average Exercise Price (in USD per share)	$ 6.68
Exercisable, Aggregate Intrinsic Value	$ 0
Exercisable, Weighted Average Remaining Contractual Life	3 years 3 months 20 days