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Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (USD $)
Jun. 30, 2013
Mar. 31, 2013
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Assets, Fair Value $ 0 $ 0
Liabilities, Fair Value 173,758 198,330
Warrant Liability [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Liabilities, Fair Value 0 0
Warrant Liability [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Liabilities, Fair Value 0 0
Warrant Liability [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Liabilities, Fair Value 173,758 198,330
Warrant Liability [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Liabilities, Fair Value 173,758 198,330
Fair Value, Inputs, Level 1 [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Assets, Fair Value 0 0
Liabilities, Fair Value 0 0
Fair Value, Inputs, Level 2 [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Assets, Fair Value 0 0
Liabilities, Fair Value 0 0
Fair Value, Inputs, Level 3 [Member]
    
Note 9 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Assets, Fair Value 0 0
Liabilities, Fair Value $ 173,758 $ 198,330