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Note B - Inventories (Tables)
12 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
201
9
   
2018
 
Raw materials
  $
18,322
    $
16,209
 
Work in progress
   
3,785
     
4,268
 
Finished goods
   
5,002
     
3,462
 
Reserve
   
(1,106
)
   
(372
)
    $
26,003
    $
23,567