Annual report pursuant to Section 13 and 15(d)

Inventories (Tables)

v3.19.3
Inventories (Tables)
12 Months Ended
Jul. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consisted of the following at July 31:

    2019     2018  
Raw materials   $ 876     $ 754  
Work in process     2,566       2,174  
Finished products     4,400       4,350  
    $ 7,842     $ 7,278