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Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing (USD $)
 12 Months Ended 150 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Net proceeds $ 1,615,798 $ 1,999,032 $ 4,343,273
Fair value of warrants (recorded to Additional Paid-in Capital) (1,127,418)    
Beneficial conversion feature (recorded to Additional Paid-in Capital) (762,667)    
Net proceeds allocated to preferred stock 108,947    
Accretion of beneficial conversion feature (deemed dividend) 762,667    
Gross Proceeds [Member]
      
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Net proceeds 1,999,032    
Initial Carrying Value [Member]
      
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Carrying value 871,614   871,614
Series A Beneficial Conversion Feature [Member] | Series B Convertible Preferred Stock [Member]
      
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Beneficial conversion feature (recorded to Additional Paid-in Capital) (360,229)    
Series B Beneficial Conversion Feature [Member] | Series B Convertible Preferred Stock [Member]
      
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Beneficial conversion feature (recorded to Additional Paid-in Capital) (754,286)    
Series A Convertible Preferred Stock [Member]
      
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Accretion of beneficial conversion feature (deemed dividend) 360,229    
Conversions to common stock (1,171,257)    
Carrying value 60,586 312,196 60,586
Series B Convertible Preferred Stock [Member]
      
Note 8 - Preferred Stock (Details) - Allocation of Net Proceeds from Preferred Stock Financing [Line Items]      
Net proceeds 1,615,798    
Net proceeds allocated to preferred stock 501,283    
Accretion of beneficial conversion feature (deemed dividend) 754,286    
Carrying value $ 1,255,569   $ 1,255,569