Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details) - Schedule of inventory current

v3.20.1
Inventories (Details) - Schedule of inventory current - USD ($)
$ in Thousands
Apr. 30, 2020
Jul. 31, 2019
Schedule of inventory current [Abstract]    
Raw materials $ 907 $ 876
Work in process 2,652 2,566
Finished products 4,459 4,400
Total inventory $ 8,018 $ 7,842