Annual report pursuant to Section 13 and 15(d)

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

v3.19.3
Income Taxes - Schedule of Significant Components of Deferred Tax (Details) - USD ($)
Jul. 31, 2019
Jul. 31, 2018
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 35,361,000 $ 28,313,000
Credits 3,257,000 2,408,000
Start-up costs 23,000 24,000
Accumulated depreciation 122,000 162,000
Option and stock awards 4,825,000 5,703,000
Other 241,000 591,000
Net deferred tax assets 43,829,000 37,201,000
Valuation allowance for deferred tax assets (43,829,000) (37,201,000)
Net deferred taxes