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Note 10 - Other Income and Expense (Tables)
 12 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
   
201
8
    
201
7
    
201
6
  
Interest income
   $
128
      
399
     $
504
  
Interest expense
    
(845
)
    
(674
)
    
(669
)
Foreign currency gain (loss), net
    
(316
)
    
(86
)
    
(59
)
Income (loss) from equity investment
    
-
      
(307
)
    
118
  
Brazil tax settlements
    
1,446
      
-
      
-
  
Lawsuit settlements
    
(666
 )    
(100
)
    
-
  
Sale of scrap material
    
70
      
71
      
95
  
Other income (expense), net
    
324
      
190
      
81
  
    $
141
      
(507
)
   $
70