Quarterly report pursuant to Section 13 or 15(d)

12. Warrants (Details)

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12. Warrants (Details) - Warrant [Member] - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Warrant    
Number of Warrants outstanding beginning balance 5,055,000  
Warrants Granted 0  
Warrants Exercised 75,000  
Warrants Expired 0  
Number of Warrants outstanding ending balance 4,980,000 5,055,000
Number of Warrants exercisable 4,980,000 5,055,000
Exercise Price Per Share    
Exercise price per share, beginning balance $ 1.16  
Exercise price per share, ending balance $ 1.16 $ 1.16
Exercise price per share range $1.10-2.00 $1.10-2.00
Exercise price per share, exercisable $1.10-2.00 $1.10-2.00
Weighted average remaining contractual life, warrants outstanding 4 years 6 months 4 years 9 months
Weighted average remaining contractual life, exercisable 4 years 6 months 4 years 9 months
Aggregate Intrinsic Value    
Aggregate intrinsic value, outstanding $ 5,016,100  
Aggregate instrinsic value, exercisable $ 5,016,100