XML 82 R58.htm IDEA: XBRL DOCUMENT

Restructuring Charges - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (107,000)us-gaap_RestructuringCharges	$ (80,000)us-gaap_RestructuringCharges	$ (317,000)us-gaap_RestructuringCharges	$ 216,000us-gaap_RestructuringCharges
Fiscal Year 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			(100,000)
Restructuring charges incurred to date	4,000,000		4,000,000
Fiscal Year 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,600,000		$ (200,000)

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References+ Details