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Note 3 - Summary of Significant Accounting Policies (Details Textual) - shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Minimum [Member]    
Property, Plant and Equipment, Useful Life 3 years  
Maximum [Member]    
Property, Plant and Equipment, Useful Life 5 years  
Options and Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 5,111,111 4,371,111