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Note B - Inventories, Net (Tables)
9 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
March 31,
201
9
   
June 30,
2018
 
Raw materials
  $
19,990
    $
16,209
 
Work in progress
   
4,400
     
4,268
 
Finished goods
   
3,360
     
3,462
 
Reserve
   
(734
)
   
(372
)
    $
27,016
    $
23,567