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STOCKHOLDERS' EQUITY (Details Narrative 3) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Share-based compensation expense $ 6,447,154 $ 16,139,225 $ 6,621,658
Total unrecognized estimated compensation expense $ 10,596,000    
Recognized weighted-average period 2 years 1 month 6 days    
Shares issued for exercise of warrants, net $ 3,798,999 $ 1,373,000 366,000
Stock Options [Member]      
Options outstanding, ending 23,365,225 21,767,854  
Aggregate intrinsic value of options exercised $ 452,287 $ 3,828,358 $ 3,186,371
Stock Options [Member] | Minimum [Member]      
Option exercise prices (in dollars per shares) $ 0.10    
Stock Options [Member] | Maximum [Member]      
Option exercise prices (in dollars per shares) $ 8.92    
2009 Long Term Incentive Compensation Plan [Member]      
Number of shares authorized for issuance 25,000,000    
Options outstanding, ending 18,575,084    
Number of shares available for issuance 2,173,878    
Vesting period 4 years    
Expiration period 10 years    
2012 Stock Incentive Plan [Member]      
Number of shares authorized for issuance 10,000,000    
Options outstanding, ending 4,790,141    
Number of shares available for issuance 5,128,333    
Vesting period 4 years    
Expiration period 10 years    
Warrants Cashless Exercise [Member]      
Shares issued for exercise of warrants, net (in shares) 4,762,208   232,197
Warrants exercised 6,590,000   310,000
Warrants [Member]      
Recognized weighted-average period 2 months 12 days    
Shares issued for exercise of warrants, net     $ 366,000
Shares issued for exercise of warrants, net (in shares)     945,485
Warrants exercised 9,066,666   1,255,485
Warrants [Member] | Individuals [Member]      
Shares issued for exercise of warrants, net $ 3,798,999 $ 1,373,000  
Shares issued for exercise of warrants, net (in shares) 2,476,666 722,744