Annual report pursuant to Section 13 and 15(d)

Inventories (Details) - Schedule of inventory, current

v3.19.3
Inventories (Details) - Schedule of inventory, current - USD ($)
$ in Thousands
Jul. 31, 2019
Jul. 31, 2018
Schedule of inventory, current [Abstract]    
Raw materials $ 876 $ 754
Work in process 2,566 2,174
Finished products 4,400 4,350
$ 7,842 $ 7,278