Note 8 - Property, Plant and Equipment (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Capital Leased Assets, Gross	$ 0	$ 0
Operating Leases, Rent Expense, Net	$ 2,300,000	$ 2,200,000	$ 1,900,000