Inventories (Tables)

6 Months Ended

Jan. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following:

	January 31, 2015		July 31, 2014
Raw materials	$	1,086	$	1,092
Work in process		2,285		2,460
Finished products		4,912		5,138
	$	8,283	$	8,690