XML 69 R53.htm IDEA: XBRL DOCUMENT v3.10.0.1
STOCKHOLDERS' EQUITY (Details Narrative 3) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based compensation expense $ 8,091,294 $ 6,447,154 $ 16,139,225
Total unrecognized estimated compensation expense $ 12,175,000    
Recognized weighted-average period 2 years 1 month 6 days    
Shares issued for exercise of warrants, net   3,798,999 989,060
Proceeds from sale of common stock, net of costs $ 89,907,797 68,572,635 134,863,475
Share based compensation expense $ 8,661,967 $ 6,889,323 $ 17,411,021
Stock Options [Member]      
Options outstanding, ending 20,872,824 23,365,225  
Options outstanding $ 4.93 $ 3.78  
Options Granted 3,264,500    
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    
Cash-Settled Stock Appreciation Rights (SARs) [Member]      
Options outstanding, ending 103,000    
Options outstanding $ 0.07    
Expected term 6 months    
Volatility rate 49.70%    
Risk free rate 2.70%    
Dividend yield 0.00%    
Restricted Stock Units [Member]      
Grant date fair value (in dollars per share) $ 4.06    
Share based compensation expense $ 73,132    
Expected term 2 years 11 months 12 days    
Unrecognized estimated compensation expense $ 4,149,000    
Options Granted 1,040,000    
2012 Stock Incentive Plan [Member]      
Number of shares authorized for issuance 10,000,000    
Options outstanding, ending 6,278,474    
Number of shares available for issuance 2,433,333    
2009 Long Term Incentive Compensation Plan [Member]      
Number of shares authorized for issuance 25,000,000    
Options outstanding, ending 14,594,350    
Number of shares available for issuance 866,912    
2009 Long Term Incentive Compensation Plan [Member] | Restricted Stock Units [Member]      
Options outstanding $ 1,040,000