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Note 11 - Derivative Financial Instruments - Gain (Loss) Recognized in Comprehensive Income on Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Change in unrealized gains (losses) $ 1,152 $ 363
Interest Rate Swap [Member]    
Change in unrealized gains (losses) 102 397
Foreign Exchange Contract [Member]    
Change in unrealized gains (losses) $ 1,050 $ (34)