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Note 9 - Derivative Financial Instruments - Gain (Loss) Recognized in Comprehensive Income on Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Interest Rate Swap [Member]      
Unrealized gain (loss) $ (743) $ (533) $ (194)
Foreign Exchange Contract [Member]      
Unrealized gain (loss) (267) (154)
Unrealized gain (loss) $ (1,010) $ (687) $ (194)