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9. Stock Options and Warrants (Tables)
3 Months Ended
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]  
Stock options outstanding
   Options   Weighted Avg. Exercise Price 
January 1, 2016   21,535,148   $0.30 
Granted   1,710,527    0.19 
Exercised        
Forfeited   (61,419)   1.46 
March 31, 2016   23,184,256   $0.29 
Options outstanding by Per Share Price
    Outstanding Options   Exercisable Options
Option
Exercise Price
Per Share
  Shares     Life
(Years)
  Weighted
Average Exercise
Price
  Shares     Weighted
Average Exercise
Price
$ 0.21 - $ 0.99     23,033,810     5.4   $0.28     21,288,283     $0.29
$ 1.00 - $ 1.99     150,446     7.3   $1.18     150,446     $1.18
      23,184,256     5.4   $0.29     21,438,729     $0.29
Warrants outstanding
   Warrants   Weighted Avg.  
Exercise Price
 
January 1, 2016   4,411,667   $0.31 
Granted   4,593,575    0.11 
Exercised        
Cancelled   (120,000)   1.01 
March 31, 2016   8,885,242   $0.19 
Warrants outstanding by Per Share Price
   Outstanding Warrants   Exercisable Warrants 
Warrant Exercise Price Per Share  Shares   Life
(Years)
   Weighted
Average Exercise Price
   Shares   Weighted
Average Exercise Price
 
$ 0.25 - $ 0.99   8,885,242    1.9   $0.19    8,850,242   $0.19 
$ 1.00 - $ 1.99                    
    8,885,242    1.9   $0.19    8,850,242   $0.19