Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Significant Components of Deferred Tax (Details)

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Income Taxes - Schedule of Significant Components of Deferred Tax (Details) - USD ($)
Jul. 31, 2017
Jul. 31, 2016
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 30,237,000 $ 23,568,000
Credits 2,004,000 1,440,000
Start-up costs 46,000 51,000
Accumulated depreciation 170,000 341,000
Option and stock awards 4,886,000 3,347,000
Other 686,000 503,000
Net deferred tax assets 38,029,000 29,250,000
Valuation allowance for deferred tax assets 38,029,000 29,250,000
Net deferred taxes