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Stockholders' Equity (Tables)
 9 Months Ended
Sep. 30, 2018
Stockholders' Equity Note [Abstract]  
Summary of warrant activity

The following is a summary of warrant activity since December 31, 2017:

        

            Weighted    
        Weighted   Average    
        Average   Remaining   Aggregate
    Warrants   Exercise   Contractual   Intrinsic
    Outstanding   Price   Life   Value
Outstanding, December 31, 2017     22,760,416     $ 0.55       4.67     $ 13,640,000  
Granted     5,650,000       2.17                  
Forfeited     0                          
Exercised     0                          
Outstanding, September 30, 2018     28,410,416     $ 0.87       3.99     $ 9,812,000  
Exercisable, September 30, 2018     27,910,416     $ 0.89       3.98     $ 9,812,000  
Summary of exercise price for warrant outstanding

The exercise price for warrant outstanding and exercisable at September 30, 2018:

 

Outstanding   Exercisable
             
  Number of       Exercise       Number of       Exercise  
  Warrants       Price       Warrants       Price  
  22,000,000     $ 0.50       22,000,000     $ 0.50  
  3,000,000       1.85       3,000,000       1.85  
  666,666       2.00       666,666       2.00  
  93,750       2.25       93,750       2.25  
  1,000,000       2.35       1,000,000       2.35  
  650,000       2.50       650,000       2.50  
  500,000       2.70       500,000       2.70  
  500,000       2.80       —       2.80  
  28,410,416               27,910,416