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Note 6 - Inventories (Tables)
9 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
03/31/2019
   
6/30/2018
 
Raw material and supplies
  $
26,172
    $
23,764
 
Goods in process and finished parts
   
18,519
     
18,423
 
Finished goods
   
42,585
     
40,739
 
     
87,276
     
82,926
 
LIFO Reserve
   
(24,120
)
   
(24,887
)
    $
63,156
    $
58,039