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Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding (USD $)
 6 Months Ended
Jun. 30, 2014
Aug. 31, 2013
Mar. 31, 2013
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 2.00 [1] $ 1.93 $ 1.97
Number Outstanding 6,204,930    
Weighted Average Remaining Contractual Life 2 years 248 days    
Exercise Price 1 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 0.75    
Number Outstanding 139,340    
Weighted Average Remaining Contractual Life 1 year 3 months    
Exercise Price 2 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 0.78    
Number Outstanding 213,402    
Weighted Average Remaining Contractual Life 1 year 215 days    
Exercise Price 3 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 0.80    
Number Outstanding 124,481    
Weighted Average Remaining Contractual Life 1 year 6 months    
Exercise Price 4 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 1.00    
Number Outstanding 212,000    
Weighted Average Remaining Contractual Life 1 year 58 days    
Exercise Price 5 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 1.15    
Number Outstanding 461,340    
Weighted Average Remaining Contractual Life 6 years 302 days    
Exercise Price 6 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 1.93    
Number Outstanding 5,000,000    
Weighted Average Remaining Contractual Life 2 years 175 days    
Exercise Price 7 [Member]
      
Note 10 - Options and Warrants to Purchase Common Stock (Details) - Summary of the Status of the Warrants Outstanding [Line Items]      
Exercise Price $ 2.00    
Number Outstanding 54,367    
Weighted Average Remaining Contractual Life 2 years 32 days    
[1] Weighted average