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Note 9 - Derivative Financial Instruments - Details About Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Accumulated other comprehensive income (loss) component $ 913 $ 83 $ 1,064 $ 304
Interest Rate Swap [Member] | Interest Expense [Member]        
Accumulated other comprehensive income (loss) component 913 110 1,064 229
Foreign Exchange Contract [Member] | Cost of Sales [Member]        
Accumulated other comprehensive income (loss) component $ (27) $ 75