Customer and Geographic Information (Tables)

12 Months Ended

Jul. 31, 2015

Geographic Areas, Revenues from External Customers [Abstract]

Schedule of net sales as a percentage, by geography and customer type

Sales by geography and customer type, as a percentage of consolidated net sales, are as follows:

	Fiscal Years Ended July 31,
	2015		2014		2013
United States
U.S. government	30.6	%	28.0	%	34.7	%
Commercial	13.2	%	12.6	%	15.2	%
Total United States	43.8	%	40.6	%	49.9	%
International
North African country	13.8	%	15.4	%	5.7	%
Other international	42.4	%	44.0	%	44.4	%
Total International	56.2	%	59.4	%	50.1	%