Annual report pursuant to Section 13 and 15(d)

Inventories (Details) - Schedule of inventory, current

v3.7.0.1
Inventories (Details) - Schedule of inventory, current - USD ($)
$ in Thousands
Jul. 31, 2017
Jul. 31, 2016
Schedule of inventory, current [Abstract]    
Raw materials $ 852 $ 951
Work in process 1,905 1,755
Finished products 4,290 4,265
$ 7,047 $ 6,971