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Common Stock Options (Tables)
 12 Months Ended
Dec. 31, 2015
Common Stock Options Tables  
Common stock option activity
    Options Outstanding    

Weighted Average

Exercise Price

  
Outstanding at December 31, 2014     4,644,428     $ 0.68  
Options granted     625,000     $ 0.39  
Options forfeited     (273,333)     $ 0.58  
Options exercised     -     $ -  
Outstanding at December 31, 2015     4,996,095     $ 0.65  
Common stock options outstanding and exercisable
    Options Exercisable    

Weighted Average Exercise

Price per Share

  
Exercisable at December 31, 2014     3,781,096     $ 0.68  
Exercisable at December 31, 2015     4,312,762     $ 0.68