Note 13 - Restructuring Costs - Summary of Restructuring Costs for the Period (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Restructuring and related costs	$ 401		$ 556
Severance and Other Termination Benefits [Member]
Restructuring and related costs	202		221
Facility Repairs [Member]
Restructuring and related costs	7		47
Restructuring Impairment of Fixed Assets and Accelerated Depreciation [Member]
Restructuring and related costs	185		228
Other Restructuring [Member]
Restructuring and related costs	$ 7		$ 60