STOCKHOLDERS' (DEFICIT) EQUITY - Rights Offering (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 27, 2015	Mar. 09, 2015	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2010
Class of Stock [Line Items]
Preferred stock, par value (in USD per share)			$ 0.0001	$ 0.0001
Warrants, exercise price (in dollars per share)					$ 10.00
Series A preferred stock, shares issued (in shares)			635,822	0
Proceeds raised from rights offering	$ 1,100	$ 62,500
Convertible Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in USD per share)	$ 5.17
Price of Warrants (in dollars per share)		$ 5.17
Series A preferred stock, shares issued (in shares)	10,822	625,000
Preferred stock offering price (in dollars per share)		$ 100.00
Class B Warrants
Class of Stock [Line Items]
Warrants, exercise price (in dollars per share)	$ 6.45	$ 6.45
Warrants outstanding (in shares)	31,025	1,800,000
Preferred stock offering price (in dollars per share)	$ 100
Class A Warrants
Class of Stock [Line Items]
Price of Warrants (in dollars per share)	$ 5.17
Warrants, exercise price (in dollars per share)		$ 5.17
Warrants outstanding (in shares)	31,025	1,800,000