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Note B - Inventories (Tables)
 12 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
201
7
    
2016
  
Raw materials
   $
9,469
     $
14,751
  
Work in progress
    
1,312
      
3,487
  
Finished goods
    
3,562
      
2,832
  
Reserve
    
(614
 )    
(302
 )
Total inventories   $
13,729
     $
20,768