Quarterly report pursuant to Section 13 or 15(d)

12. Warrants (Details)

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12. Warrants (Details) - Warrant [Member] - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Warrant    
Number of Warrants outstanding beginning balance 1,651,698  
Warrants Granted 1,286,690  
Warrants Exercised 1,171,690  
Warrants Expired 0  
Number of Warrants outstanding ending balance 1,766,698 1,651,698
Number of Warrants exercisable 1,279,999 1,651,698
Exercise Price Per Share    
Warrant exercise price per share, beginning balance $3.30-$6.00  
Warrant exericse price per share, granted $3.30-$5.30  
Warrant exercise price per share, exercised 3.30  
Warrant exercise price per share, ending balance $3.30-$6.00 $3.30-$6.00
Warrant exercise price per share, exercisable $3.60-$6.00 $3.60-$6.00
Weighted Average Remaining Contractual Life    
Weighted average remaining contractual life, warrants outstanding 4 years 5 months 9 days 3 years 9 months
Weighted average remaining contractual life, exercisable 4 years 3 months 11 days 3 years 9 months
Weighted Average Exercise Price per Share    
Warrant weighted average exercise price per share, beginning balance $ 3.49  
Warrant weighted average exercise price per share, ending balance 4.03 $ 3.49
Warrant weighted average exercise price per share, exercisable $ 3.54 $ 3.49
Aggregate Intrinsic Value    
Aggregate intrinsic value, outstanding $ 476,698 $ 3,301,913
Aggregate instrinsic value, exercisable $ 476,698 $ 3,301,913