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Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts - USD ($)
Sep. 30, 2015
Jun. 30, 2015
Euro Member Countries, Euro    
Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts [Line Items]    
Derivative, Notional Amount $ 4,270,320 $ 10,134,797
United Kingdom, Pounds    
Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts [Line Items]    
Derivative, Notional Amount $ 120,491 $ 1,730,542