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STOCKHOLDERS' EQUITY (Details) - Warrant [Member]
3 Months Ended
Mar. 31, 2018
USD ($)
$ / shares
shares
Shares Under Warrants  
Outstanding, beginning balance | shares 6,301,216
Issued | shares 0
Exercised | shares (730,381)
Expired/Cancelled | shares 0
Outstanding, ending balance | shares 5,570,835
Weighted Average Exercise Price  
Outstanding, beginning balance | $ / shares $ 2.51
Granted | $ / shares 0
Exercised | $ / shares 2.50
Expired/Cancelled | $ / shares 0
Outstanding, ending balance | $ / shares $ 2.51
Weighted Average Remaining Contractual Life  
Outstanding 7 months 6 days
Aggregate Intrinsic Value  
Outstanding, ending balance | $ $ 80,220,024