Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details) - Schedule of inventory, current

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Inventories (Details) - Schedule of inventory, current - USD ($)
$ in Thousands
Apr. 30, 2016
Jul. 31, 2015
Schedule of inventory, current [Abstract]    
Raw materials $ 920 $ 1,013
Work in process 1,811 2,002
Finished products 4,247 4,381
$ 6,978 $ 7,396