Customer and Geographic Information (Tables)

9 Months Ended

Apr. 30, 2016

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:

	Three months ended April 30,				Nine months ended April 30,
	2016		2015		2016		2015
United States
U.S. government	41.9	%	37.5	%	41.8	%	29.7	%
Domestic	35.2	%	11.9	%	26.0	%	12.5	%
Total United States	77.1	%	49.4	%	67.8	%	42.2	%
International
North African country	0.9	%	17.3	%	2.6	%	15.6	%
Other international	22.0	%	33.3	%	29.6	%	42.2	%
Total International	22.9	%	50.6	%	32.2	%	57.8	%