Annual report pursuant to Section 13 and 15(d)

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

v3.20.2
Income Taxes - Schedule of Significant Components of Deferred Tax Assets (Details) - USD ($)
Jul. 31, 2020
Jul. 31, 2019
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 46,623,000 $ 35,361,000
Credits 4,311,000 3,257,000
Start-up costs 21,000 23,000
Accumulated depreciation 98,000 122,000
Option and stock awards 386,000 4,825,000
Other 122,000 241,000
Net deferred tax assets 51,561,000 43,829,000
Valuation allowance for deferred tax assets (51,561,000) (43,829,000)
Net deferred taxes