Note 10 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (USD $)	Sep. 30, 2013	Mar. 31, 2013
Note 10 - 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	282,213	198,330
Warrant Liability [Member] | Fair Value, Inputs, Level 1 [Member]
Note 10 - 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 10 - 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 10 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Liabilities, Fair Value	282,213	198,330
Warrant Liability [Member]
Note 10 - Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Liabilities, Fair Value	282,213	198,330
Fair Value, Inputs, Level 1 [Member]
Note 10 - 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 10 - 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 10 - 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	$ 282,213	$ 198,330