Note 3 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (USD $)	Mar. 31, 2014	Dec. 31, 2013
Assets
Assets	$ 2,007,240	$ 3,206,079
Liabilities
Liabilities	1,000,993	819,930
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Assets	2,007,240	3,206,079
Money Market Funds [Member]
Assets
Assets	2,007,240	3,206,079
Warrant [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities
Liabilities	1,000,993	819,930
Warrant [Member]
Liabilities
Liabilities	1,000,993	819,930
Fair Value, Inputs, Level 1 [Member]
Assets
Assets	2,007,240	3,206,079
Fair Value, Inputs, Level 3 [Member]
Liabilities
Liabilities	$ 1,000,993	$ 819,930