Quarterly report pursuant to Section 13 or 15(d)

13. Warrants (Details)

v3.5.0.2
13. Warrants (Details) - $ / shares
6 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Common stock warrants outstanding    
Exercise Price Minimum $ 0.50  
Exercise Price Maximum $ 3.30  
Number outstanding 29,655,740  
Weighted Average Remaining Contractual Life (years) 3 years 2 months 19 days  
Number Exercisable 29,655,740  
Weighted Average Exercise Price $ 2.09 $ 1.81
Warrant [Member]    
Common stock warrants outstanding    
Exercise Price $ 1.25  
Number outstanding 11,195  
Weighted Average Remaining Contractual Life (years) 6 months 11 days  
Weighted Average Exercise Price $ 1.25  
Number Exercisable 11,195  
Weighted Average Exercise Price $ 1.25  
Warrant One [Member]    
Common stock warrants outstanding    
Exercise Price $ 1.00  
Number outstanding 1,642,680  
Weighted Average Remaining Contractual Life (years) 11 months 9 days  
Weighted Average Exercise Price $ 1.00  
Number Exercisable 1,642,680  
Weighted Average Exercise Price $ 1.00  
Warrant Two [Member]    
Common stock warrants outstanding    
Exercise Price $ 0.87  
Number outstanding 1,303,300  
Weighted Average Remaining Contractual Life (years) 2 years 10 months 10 days  
Weighted Average Exercise Price $ 0.87  
Number Exercisable 1,303,300  
Weighted Average Exercise Price $ 0.87  
Warrant Three [Member]    
Common stock warrants outstanding    
Exercise Price $ 0.65  
Number outstanding 590,000  
Weighted Average Remaining Contractual Life (years) 2 years 7 months 24 days  
Weighted Average Exercise Price $ 0.65  
Number Exercisable 590,000  
Weighted Average Exercise Price $ 0.65  
Warrant Four [Member]    
Common stock warrants outstanding    
Exercise Price $ 0.50  
Number outstanding [1] 12,743,728  
Weighted Average Remaining Contractual Life (years) 3 years 1 month 13 days  
Weighted Average Exercise Price $ 0.5  
Number Exercisable 12,743,728  
Weighted Average Exercise Price $ 0.5  
Warrant Five [Member]    
Common stock warrants outstanding    
Exercise Price $ 0.48  
Number outstanding 577,750  
Weighted Average Remaining Contractual Life (years) 2 years 3 months 7 days  
Weighted Average Exercise Price $ 0.48  
Number Exercisable 577,750  
Weighted Average Exercise Price $ 0.48  
Warrant Six [Member]    
Common stock warrants outstanding    
Exercise Price $ 0.35  
Number outstanding [1] 12,787,087  
Weighted Average Remaining Contractual Life (years) 3 years 8 months 16 days  
Weighted Average Exercise Price $ 0.35  
Number Exercisable 12,787,087  
Weighted Average Exercise Price $ 0.35  
[1] All warrants exercisable at $0.50 and 7,897,093 warrants exercisable at $0.35 contain dilution protections that increase the number of shares purchasable at exercise upon the issuance of securities at a price below the current exercise price.