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Note B - Inventories, Net (Tables)
6 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
December 31
,
2018
   
June 30,
2018
 
Raw materials
  $
15,551
    $
16,209
 
Work in progress
   
3,847
     
4,268
 
Finished goods
   
4,610
     
3,462
 
Reserve
   
(533
)
   
(372
)
    $
23,475
    $
23,567