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Note 15 - Restructuring - Summary of Severance, Restructuring, and Related Charges by Initiative (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Restructuring charges $ 4,669 $ 1,289 $ 3,428
Involuntary Employee Severance And Benefit Costs [Member]      
Restructuring charges 4,004 1,163 1,930
Other Restructuring [Member]      
Restructuring charges 665 126 1,498
Current Year Restructuring Initiatives [Member]      
Restructuring charges 4,610 968 2,327
Current Year Restructuring Initiatives [Member] | Involuntary Employee Severance And Benefit Costs [Member]      
Restructuring charges 4,004 953 1,706
Current Year Restructuring Initiatives [Member] | Other Restructuring [Member]      
Restructuring charges 606 15 621
Prior Year Initiatives [Member]      
Restructuring charges 59 321 1,101
Prior Year Initiatives [Member] | Involuntary Employee Severance And Benefit Costs [Member]      
Restructuring charges 0 210 224
Prior Year Initiatives [Member] | Other Restructuring [Member]      
Restructuring charges $ 59 $ 111 $ 877