Quarterly report pursuant to Section 13 or 15(d)

Inventories (Tables)

v3.19.2
Inventories (Tables)
9 Months Ended
Apr. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consist of the following:

    April 30,
2019
    July 31,
2018
 
Raw materials   $ 895     $ 754  
Work in process     2,480       2,174  
Finished products     4,220       4,350  
    $ 7,595     $ 7,278