Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2017	Jul. 31, 2016
Income Tax Disclosure [Abstract]
Federal and State net operating loss	$ 5,988	$ 5,847
Foreign net operating loss	18	18
Stock-based compensation and other	173	430
Deferred tax assets gross, total	6,179	6,295
Less: Valuation allowance	(6,179)	(6,295)
Net deferred tax asset

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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