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Note 15 - Share-based Payments (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Note 15 - Share-based Payments (Details) [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years 146 days  
Allocated Share-based Compensation Expense $ 125,048us-gaap_AllocatedShareBasedCompensationExpense $ 100,977us-gaap_AllocatedShareBasedCompensationExpense
Employee Stock Option [Member]    
Note 15 - Share-based Payments (Details) [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 1,228,825us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember