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Note 11 - Warrants to Purchase Common Stock (Tables)
12 Months Ended
Dec. 31, 2014
Note 8 - Warrants To Purchase Common Stock Tables  
Summary of warrants issued, exercised and expired

A summary of warrants issued, exercised and expired for the years ended December 31, 2014 and 2013 is as follows:

 

    Shares     Weighted- Average Exercise Price ($)     Weighted-Average Remaining Contractual Term  
Outstanding at December 31, 2012     661,947       .80       1.31  
Granted     9,887,169       1.00       1.36  
Exercised     --       --       --  
Expired     (63,050)       3.00       --  
                         
Outstanding at December 31, 2013     10,486,066     $ 1.00       1.36  
Granted     6,891,543       0.31       4.60  
Exercised                  
Expired     (323,897 )     3.00        
                         
Outstanding at December 31, 2014     17,053,712     $ 0.71       2.08  
                         
Exercisable at December 31, 2014     17,053,712     $ 0.71       2.08