Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Comprehensive income [Abstract]
Net (loss) income including noncontrolling interests	$ (6,588)	$ (106,675)	$ (135,181)	$ 2,367,563
Foreign currency translation adjustments	172,777	(201,500)	(257,493)	111,247
Unrealized investment gain (loss), net	4,006	(37,552)	2,040	364
Comprehensive income (loss)	170,195	(345,727)	(390,634)	2,479,174
Comprehensive income attributable to noncontrolling interests	(291,953)	(301,671)	(468,097)	(641,896)
Comprehensive (loss) income attributable to Ecology and Environment, Inc.	$ (121,758)	$ (647,398)	$ (858,731)	$ 1,837,278