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Note Q - Restructuring of Operations and Other Operating Income (Tables)
 12 Months Ended
Jun. 30, 2020
Notes Tables  
Restructuring and Related Costs [Table Text Block]
Accrued restructuring liability, June 30, 2018
   $
90
  
Additions
    
1,179
  
Payments and adjustments
    
(1,269
 )
Accrued restructuring liability, June 30, 2019
    
-
  
Additions
    
5,138
  
Payments and adjustments
    
(5,054
 )
Accrued restructuring liability, June 30, 2020
   $
84