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Note 7 - Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2014
Note 7 - Stock-Based Compensation Tables  
Summary of options issued, exercised and cancelled

A summary of options issued, exercised and cancelled for the nine months ended September 30, 2014 are as follows:

 

    Shares     Weighted- Average Exercise Price ($)     Weighted- Average Remaining Contractual Term     Aggregate Intrinsic Value ($)  
Outstanding at December 31, 2013     8,315,958     $ 0.42       9.09        
Granted     1,329,000       0.25       9.24        
Exercised                        
Cancelled     (2,668,895 )     0.47              
                                 
Outstanding at September 30, 2014     6,976,063     $ 0.26       8.34        
                                 
Exercisable at September 30, 2014     5,968,002     $ 0.36       8.58