Income Taxes (Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2015	Jan. 31, 2014
Income Taxes [Abstract]
Current Federal Tax Expense (Benefit)	$ 9us-gaap_CurrentFederalTaxExpenseBenefit		$ 11us-gaap_CurrentFederalTaxExpenseBenefit
Federal, current	(9)us-gaap_CurrentFederalTaxExpenseBenefit		(11)us-gaap_CurrentFederalTaxExpenseBenefit
State, current	(19)		(36)	(6)
Change in valuation allowance	17	32	17	32
Deferred, net	(263)us-gaap_DeferredOtherTaxExpenseBenefit	194us-gaap_DeferredOtherTaxExpenseBenefit	(333)us-gaap_DeferredOtherTaxExpenseBenefit	116us-gaap_DeferredOtherTaxExpenseBenefit
Income tax benefit (expense)	$ (274)us-gaap_IncomeTaxExpenseBenefit	$ 226us-gaap_IncomeTaxExpenseBenefit	$ (363)us-gaap_IncomeTaxExpenseBenefit	$ 142us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods.

+ References+ Details