Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $)	Sep. 30, 2014	Dec. 31, 2013
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets	$ 10,010,458	$ 3,206,079
Liabilities	562,568	819,930
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets	10,010,458	3,206,079
Money Market Funds [Member]
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets	10,010,458	3,206,079
Warrant [Member] | Fair Value, Inputs, Level 3 [Member]
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Liabilities	562,568	819,930
Warrant [Member]
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Liabilities	562,568	819,930
Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets	10,010,458	3,206,079
Fair Value, Inputs, Level 3 [Member]
Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Liabilities	$ 562,568	$ 819,930