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Note 10 - Other Income and (Expense) (Tables)
 12 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
   
20
20
    
201
9
    
201
8
  
Interest income
   $
90
      
71
     $
128
  
Interest expense
    
(975
)
    
(976
)
    
(845
)
Foreign currency gain (loss), net
    
140
      
(426
)
    
(316
)
Brazil tax settlements
    
2,544
      
345
      
1,446
  
Patent lawsuit settlement
    
-
      
-
      
(666
)
Sale of scrap material
    
100
      
110
      
70
  
Pension net periodic benefit cost (NPBC)
    
(16,753
)
    
(930
)
    
(794
)
Other income (expense), net
    
160
      
195
      
324
  
    $
(14,694
)
    
(1,611
)
   $
(653
)