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Inventories
 3 Months Ended
Oct. 31, 2020
Inventory Disclosure [Abstract]  
Inventories

Note 5 – Inventories


Inventories consist of the following at October 31:


   October 31,
2020		   July 31,
2020		 
Raw materials  $1,320   $1,019 
Work in process   2,603    2,587 
Finished products   4,262    4,178 
   $8,185   $7,784