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6. Stock Options and warrants (Tables)
6 Months Ended
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]  
Option activity
   Options   Weighted Avg.  
Exercise Price
 
December 31, 2013   20,309,908   $0.28 
Granted   528,052    0.85 
Exercised   (20,000)   0.30 
Forfeited   (90,000)   0.91 
June 30, 2014   20,727,960   $0.29 
Options outstanding and exercisable
    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     20,464,731     6.7   $0.28     18,200,311     $0.28
$ 1.00 - $ 1.99     263,229     5.7   $1.22     119,601     $1.27
      20,727,960     6.7   $0.29     18,319,912     $0.28
Warrant activity
   Warrants   Weighted Avg.
Exercise Price
 
December 31, 2013   11,763,966   $0.34 
Granted   190,000    0.93 
Exercised   (4,340,947)   0.30 
Cancelled   (1,491,969)   0.30 
Outstanding, June 30, 2014   6,121,050   $0.40 
Warrants outstanding and exercisable
    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     5,501,050     3.5   $0.33     5,431,050     $0.32
$ 1.00 - $ 1.99     620,000     0.3   $1.00     500,000     $1.00

 

    6,121,050     3.1   $0.40     5,931,050     $0.38