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Note 9 - Derivative Financial Instruments - Details About Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Accumulated other comprehensive income (loss) component $ (387) $ 679 $ 1,034
Interest Rate Swap [Member] | Interest Expense [Member]      
Accumulated other comprehensive income (loss) component 399 567 1,034
Foreign Exchange Contract [Member] | Cost of Sales [Member]      
Accumulated other comprehensive income (loss) component 75 112
Foreign Exchange Contract [Member] | Other Nonoperating Income (Expense) [Member]      
Accumulated other comprehensive income (loss) component $ (861)