Note 2 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Assets
Assets	$ 10,021,694	$ 10,014,243
Liabilities
Liabilities	457,850	418,530
Money Market Funds [Member]
Assets
Assets	10,021,694	10,014,243
Warrant [Member]
Liabilities
Liabilities	457,850	418,530
Fair Value, Inputs, Level 1 [Member]
Assets
Assets	10,021,694	10,014,243
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Assets
Assets	10,021,694	10,014,243
Fair Value, Inputs, Level 3 [Member]
Liabilities
Liabilities	457,850	418,530
Fair Value, Inputs, Level 3 [Member] | Warrant [Member]
Liabilities
Liabilities	$ 457,850	$ 418,530