Inventories (Tables)

3 Months Ended

Oct. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following:

	October 31, 2015		July 31, 2015
Raw materials	$	1,109	$	1,013
Work in process		1,984		2,002
Finished products		4,489		4,381
	$	7,582	$	7,396