STOCKHOLDERS' EQUITY (Details 2) - 6 months ended Jun. 30, 2015 - USD ($)	Total
Equity Incentive Plans Warrant Activity [Line Items]
Warrants, Outstanding at Beginning Balance	4,148,228
Warrants, Issued	0
Warrants, Exercised	(2,918,115)
Warrants, Expired	(11,364)
Warrants, Outstanding at Ending Balance	1,218,749
Weighted - average exercise price of Warrants, Outstanding at Beginning Balance	$ 0.94
Weighted - average exercise price of Warrants, Issued	0
Weighted - average exercise price of Warrants, Exercised	0.34
Weighted - average exercise price of Warrants, Expired	2.25
Weighted - average exercise price of Warrants, Outstanding at Ending Balance	$ 2.37
Aggregate Intrinsic Value of Warrants, Outstanding at Beginning Balance	$ 61,792,184
Aggregate Intrinsic Value of Warrants, Outstanding at Ending Balance	$ 17,327,944