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Note 4 - Inventories (Tables)
 6 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
12
/31/2017
    
6/30/201
7
  
Raw material and supplies
   $
26,777
     $
26,293
  
Goods in process and finished parts
    
19,512
      
16,419
  
Finished goods
    
41,881
      
41,591
  
     
88,170
      
84,303
  
LIFO Reserve
    
(26,381
)
    
(26,206
)
    $
61,789
     $
58,097