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Common Stock and Warrant Issuances (Tables)
3 Months Ended
Mar. 31, 2018
Equity [Abstract]  
Summary of Warrant Outstanding

The following table summarizes information about shares issuable under warrants outstanding at March 31, 2018:

 

    Warrant
shares outstanding
    Weighted
average
exercise price
    Weighted average remaining life     Intrinsic value  
Outstanding at January 1, 2018     13,720,742     $ 1.49                  
Issued     -                          
Additional warrants issued for trigger of anti-dilution protection     1,000,000     $ 0.40                  
Exercised     (3,686,100 )   $ 1.09                  
Expired or cancelled     -                          
Outstanding at March 31, 2018     11,034,642     $ 0.79       3.04     $ 6,476  
                                 
Exercisable at March 31, 2018     11,034,642     $ 0.79       3.04     $ 6,476