Income Taxes (Details) - USD ($)	3 Months Ended
	Oct. 31, 2015	Jul. 31, 2015
Income Tax Contingency [Line Items]
Effective income tax rate, continuing operations, excluding discrete adjustments	34.75%
Unrecognized tax benefits	$ 2,880,000	$ 2,796,000
Interest accrued relating to income taxes	75,000	68,000
Unrecognized tax benefits that would positively impact our effective tax rate, if recognized	2,193,000	2,138,000
Non-current Income Tax Payable
Income Tax Contingency [Line Items]
Unrecognized tax benefits	1,345,000	1,573,000
An offset to the non-current deferred tax assets
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 1,535,000	$ 1,223,000