STOCKHOLDERS' DEFICIT - Securities excluded from calculation of basic and dilutive loss per share (Details) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation of basic and dilutive loss per share	1,088,970	20,649
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation of basic and dilutive loss per share	144
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation of basic and dilutive loss per share	558	3,495
Series A Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation of basic and dilutive loss per share	33,480
Senior convertible notes payable
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation of basic and dilutive loss per share		5,125
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation of basic and dilutive loss per share	1,054,788