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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, 2016
Jun. 30, 2015
Jun. 30, 2014
Interest Rate Swap [Member] | Interest Expense [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]      
Accumulated other comprehensive income (loss) component $ 567 $ 1,034 $ 1,031
Foreign Exchange Contract [Member] | Cost of Sales [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]      
Accumulated other comprehensive income (loss) component 112
Interest Expense [Member]      
Accumulated other comprehensive income (loss) component (567) (1,034) (1,031)
Cost of Sales [Member]      
Accumulated other comprehensive income (loss) component (112)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]      
Accumulated other comprehensive income (loss) component $ 679 $ 1,034 $ 1,031