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Schedule of Reconciliation of Income Tax Rate (Details)
12 Months Ended
Jul. 31, 2022
Jul. 31, 2020
Income Tax Disclosure [Abstract]    
Federal tax benefit at the expected statutory rate (21.00%) (21.00%)
State income tax, net of federal tax benefit (7.00%) (7.00%)
Other
Valuation allowance 28.00% 28.00%
Income tax benefit - effective rate