STOCKHOLDERS' EQUITY (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Equity Incentive Plans Warrant Activity [Line Items]
Warrants, Outstanding at Beginning Balance	5,718,947	6,781,007
Warrants, Issued	0	0
Warrants, Exercised	(1,560,826)	(1,018,068)
Warrants, Expired	(9,893)	(43,992)
Warrants, Outstanding at Ending Balance	4,148,228	5,718,947
Weighted - average exercise price of Warrants, Outstanding at Beginning Balance	$ 1.34	$ 1.58
Weighted - average exercise price of Warrants, Issued	$ 0	$ 0
Weighted - average exercise price of Warrants, Exercised	$ 2.28	$ 2.25
Weighted - average exercise price of Warrants, Expired	$ 20.74	$ 16.26
Weighted - average exercise price of Warrants, Outstanding at Ending Balance	$ 0.94	$ 1.34
Aggregate Intrinsic Value of Warrants, Outstanding at Beginning Balance	$ 14,809,030	$ 14,563,539
Aggregate Intrinsic Value of Warrants, Outstanding at Ending Balance	$ 61,792,184	$ 14,809,030