Income Taxes (Income Before Provision for Income Taxes) (Details) - USD ($)	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Income Tax Disclosure [Abstract]
U.S.	$ 33,425,000	$ 36,885,000	$ 28,930,000
Foreign	578,000	1,622,000	(1,437,000)
Income before provision for income taxes	$ 34,003,000	$ 38,507,000	$ 27,493,000