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Note 15 - Share-based Payments (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Note 15 - Share-based Payments (Details) [Line Items]        
Allocated Share-based Compensation Expense $ 128,575 $ 230,712 $ 378,228 $ 417,046
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount     0  
Employee Stock Option [Member]        
Note 15 - Share-based Payments (Details) [Line Items]        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 1,082,822   $ 1,082,822  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     2 years 36 days