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Note B - Inventories (Tables)
12 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
2018
   
2017
 
Finished parts
  $
49,332
    $
45,829
 
Work in process
   
13,183
     
8,358
 
Raw materials
   
21,486
     
12,006
 
    $
84,001
    $
66,193