Note 9 - Derivative Financial Instruments - Details About Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Accumulated other comprehensive income (loss) component	$ 292	$ (387)	$ 679
Interest Rate Swap [Member] | Interest Expense [Member]
Accumulated other comprehensive income (loss) component	171	399	567
Foreign Exchange Contract [Member] | Interest Expense [Member]
Accumulated other comprehensive income (loss) component	121	(861)
Foreign Exchange Contract [Member] | Cost of Sales [Member]
Accumulated other comprehensive income (loss) component		$ 75	$ 112