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Note 10 - Derivative Financial Instruments (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Jun. 30, 2015
Interest Rate Swap [Member]      
Derivative, Notional Amount $ 60,000,000 $ 60,000,000  
Derivative, Average Fixed Interest Rate 1.65% 1.65%  
Foreign Exchange Contract [Member]      
Outstanding forward contracts, net unrealized gain loss. $ 200,000 $ 200,000 $ 700,000
Derivative Instruments, Loss Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing $ 0 $ 0  
Derivative, Notional Amount