Quarterly report pursuant to Section 13 or 15(d)

13. Warrants (Tables)

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13. Warrants (Tables)
3 Months Ended
Mar. 31, 2019
Warrants and Rights Note Disclosure [Abstract]  
Schedule of warrant activity
    Warrants Outstanding Number of Shares     Exercise Price per Share     Weighted Average Remaining Contractual Life     Weighted Average Exercise Price per Share     Aggregate Intrinsic Value  
Balance at December 31, 2018     5,899,389     $ 3.30 – 6.00       3.74 years     $ 3.35     $  
Warrants Granted     3,691,788     $ 2.12-3.00       4.89 years       3.00        
Warrants Exercised                              
Warrants Expired                              
Balance at March 31, 2019     9,591,177     $ 2.12 – 6.00       4.03 years     $ 3.08     $  
                                         
Exercisable December 31, 2018     5,899,389     $ 3.30 – 6.00       3.74 years     $ 3.53     $  
Exercisable March 31, 2019     6,845,283     $ 2.12 – 6.00       3.68 years     $ 3.34     $