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Note 10 - Derivative Financial Instruments - Details About Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]        
Accumulated other comprehensive income (loss) component $ 80 $ 247 $ 384 $ 474
Interest Expense [Member]        
Accumulated other comprehensive income (loss) component (80) (247) (384) (474)
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 80 176 309 442
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 $ 71 $ 75 $ 32