Note 9 - Impairment of Assets and Restructuring Costs (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Impairment of Long-Lived Assets Held-for-use		$ 4,114,000
Restructuring Charges	$ 988,000