Note 16 - Restructuring - Summary of Severance, Restructuring, and Related Charges by Initiative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Restructuring charges	$ 1,635	$ 6,964	$ 5,761
Involuntary Employee Severance And Benefit Costs [Member]
Restructuring charges	1,419	2,611	1,862
Other Restructuring [Member]
Restructuring charges	216	4,353	3,899
Current Year Restructuring Initiatives [Member]
Restructuring charges	1,251	5,863	5,389
Current Year Restructuring Initiatives [Member] | Involuntary Employee Severance And Benefit Costs [Member]
Restructuring charges	1,167	2,387	1,862
Current Year Restructuring Initiatives [Member] | Other Restructuring [Member]
Restructuring charges	84	3,476	3,527
Prior Year Initiatives [Member]
Restructuring charges	384	1,101	372
Prior Year Initiatives [Member] | Involuntary Employee Severance And Benefit Costs [Member]
Restructuring charges	252	224
Prior Year Initiatives [Member] | Other Restructuring [Member]
Restructuring charges	$ 132	$ 877	$ 372