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Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts (USD $)
Dec. 31, 2014
Jun. 30, 2014
Euro Member Countries, Euro    
Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts [Line Items]    
Derivative Notional Amount $ 19,779,460invest_DerivativeNotionalAmount
/ us-gaap_CurrencyAxis
= currency_EUR		 $ 24,289,064invest_DerivativeNotionalAmount
/ us-gaap_CurrencyAxis
= currency_EUR
United Kingdom, Pounds    
Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts [Line Items]    
Derivative Notional Amount 1,290,646invest_DerivativeNotionalAmount
/ us-gaap_CurrencyAxis
= currency_GBP		 3,600,000invest_DerivativeNotionalAmount
/ us-gaap_CurrencyAxis
= currency_GBP
Canada, Dollars    
Note 10 - Derivative Financial Instruments (Details) - Foreign Currency Exchange Contracts [Line Items]    
Derivative Notional Amount   $ 3,975,192invest_DerivativeNotionalAmount
/ us-gaap_CurrencyAxis
= currency_CAD