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Note 11 - Fair Value Measures (Details) - Fair Value Assumptions of Tranche Three Convertible Notes (USD $)
0 Months Ended 12 Months Ended
Jan. 16, 2013
Mar. 31, 2014
2011 Convertible Notes [Member]
Mar. 31, 2014
2012 Convertible Notes [Member]
Mar. 31, 2014
Third Tranche Convertible Notes [Member]
Mar. 31, 2014
Minimum [Member]
2011 Convertible Notes [Member]
Mar. 31, 2014
Minimum [Member]
2012 Convertible Notes [Member]
Mar. 31, 2014
Minimum [Member]
Third Tranche Convertible Notes [Member]
Mar. 31, 2014
Maximum [Member]
2011 Convertible Notes [Member]
Mar. 31, 2014
Maximum [Member]
2012 Convertible Notes [Member]
Mar. 31, 2014
Maximum [Member]
Third Tranche Convertible Notes [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]                    
Stock Price (simulated) (in Dollars per share) $ 0.15 $ 40 $ 40 $ 40            
Strike Price (in Dollars per share) $ 0.15 $ 60 $ 60 $ 60            
Expected remaining term (in years) 5 years 1 year 3 months 1 year 3 months 1 year 3 months            
Stock Volatility 110.00% 95.00% 95.00% 95.00%            
Risk-Free Rate 0.75% 0.20% 0.20% 0.40%            
Dividend Rate 0.00% 0.00% 0.00% 0.00%            
Effective discount rate   23.90% 32.50% 32.50%            
Probability of forced redemption or transaction event         20.00% 20.00% 20.00% 50.00% 50.00% 50.00%