Note 13 - Restructuring Costs - Summary of Restructuring Costs for the Period (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Restructuring and related costs	$ 368		$ 924
Severance and Other Termination Benefits [Member]
Restructuring and related costs	263		484
Facility Repairs [Member]
Restructuring and related costs	52		99
Restructuring Impairment of Fixed Assets and Accelerated Depreciation [Member]
Restructuring and related costs			228
Other Restructuring [Member]
Restructuring and related costs	$ 53		$ 113