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Note 10 - Other Income and Expense (Tables)
 12 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
 
 
201
7
 
 
201
6
 
 
201
5
 
Interest income
   $
399
      
504
     $
828
  
Interest expense
    
(674
)
    
(669
)
    
(713
)
Foreign currency gain (loss), net
    
(86
)
    
(59
)
    
705
  
Income (loss) from equity investment
    
(307
)
    
118
      
203
  
Brazil recovery of export taxes
    
-
      
-
      
232
  
Patent lawsuit settlement
    
(100
)
    
-
      
-
  
Sale of scrap material
    
71
      
95
      
93
  
Other income (expense), net
    
190
      
81
      
(9
)
    $
(507
)
    
70
     $
1,339