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Note 2 - Fair Value Measurements (Details) - USD ($)
3 Months Ended
Mar. 31, 2015
Jun. 30, 2015
Dec. 31, 2014
Note 2 - Fair Value Measurements (Details) [Line Items]      
Liabilities, Fair Value Disclosure, Nonrecurring   $ 0 $ 0
Assets, Fair Value Disclosure, Nonrecurring   $ 0 $ 0
Weighted Average [Member] | Warrant [Member]      
Note 2 - Fair Value Measurements (Details) [Line Items]      
Fair Value Assumptions, Expected Dividend Rate 0.00%    
Fair Value Assumptions, Risk Free Interest Rate 2.35%    
Fair Value Assumptions, Expected Volatility Rate 83.57%