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Note 9 - Sale of Common Stock (Tables)
3 Months Ended
Mar. 31, 2014
Sale Of Common Stock Disclosure [Abstract]  
Schedule of Stock Options Roll Forward [Table Text Block]

September 2013 SPA Option

 

Shares

   

Exercise

Price

 

Beginning balance at December 31, 2013

    14,583,334     $ 0.06  
                 

Ending balance at March 31, 2014

    14,583,334     $ 0.06  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

The September 2013 Warrants

 

Warrants

   

Exercise

Price

 

Beginning balance at December 31, 2013

    30,625,001     $ 0.08  
                 

Ending balance at March 31, 2014

    30,625,001     $ 0.08  

The February 2013 Warrants

 

Warrants

   

Exercise

Price

 

Beginning balance at December 31, 2013

    72,046,667     $ 0.08  
                 

Ending balance at March 31, 2014

    72,046,667     $ 0.08