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9. Stock Options and Warrants (Tables)
9 Months Ended
Sep. 30, 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    2,250,527    0.19 
 Exercised         
 Forfeited    (161,419)   0.77 
 Outstanding, September 30, 2016    23,624,256   $0.28 
 Exercisable, September 30, 2016    21,373,729   $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    23,473,810    5.0   $0.28    21,223,283   $0.29 
 $ 1.00 - $ 1.99    150,446    6.8   $1.18    150,446   $1.18 
      23,624,256    5.0   $0.28    21,373,729   $0.29 
Warrants outstanding
    Warrants   Weighted Avg.  
Exercise Price
 
 January 1, 2016    4,411,667   $0.31 
 Granted    8,735,225    0.11 
 Exercised         
 Cancelled    (695,000)   0.49 
 September 30, 2016    12,451,892   $0.16 
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
 
 $ 0.01 - $ 0.14    9,015,225    0.3   $0.10    8,915,225   $0.10 
 $ 0.15 - $ 1.99    3,436,667    3.4   $0.30    3,436,667   $0.30 
      12,451,892    1.6   $0.16    12,451,892   $0.16