Note 2 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (USD $)	Dec. 31, 2013	Dec. 31, 2012
Assets
Assets	$ 3,206,079	$ 2,497,053
Liabilities
Liabilities	819,930
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Assets	3,206,079	2,497,053
Money Market Funds [Member]
Assets
Assets	3,206,079	2,497,053
Warrant [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities
Liabilities	819,930
Warrant [Member]
Liabilities
Liabilities	819,930
Fair Value, Inputs, Level 1 [Member]
Assets
Assets	3,206,079	2,497,053
Fair Value, Inputs, Level 2 [Member]
Liabilities
Liabilities	$ 819,930