Annual report pursuant to Section 13 and 15(d)

Inventories (Tables)

v3.7.0.1
Inventories (Tables)
 12 Months Ended
Jul. 31, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consisted of the following at July 31:

    2017     2016  
Raw materials   $ 852     $ 951  
Work in process     1,905       1,755  
Finished products     4,290       4,265  
    $ 7,047     $ 6,971