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Note B - Inventories (Tables)
12 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
2021
   
2020
 
Raw materials
  $
20,668
    $
20,863
 
Work in progress
   
3,760
     
3,447
 
Finished goods
   
3,050
     
4,936
 
Reserve
   
(472
)
   
(1,274
)
    $
27,006
    $
27,972