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Note 10 - Derivative Financial Instruments - Details about Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2016
Sep. 30, 2015
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 $ 119 $ 128
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 102 (8)
Interest Expense [Member]    
Accumulated other comprehensive income (loss) component (221) (120)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]    
Accumulated other comprehensive income (loss) component $ 221 $ 120