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Income Taxes (Details) - USD ($)
$ in Millions
Jul. 31, 2023
Jul. 31, 2022
Income Taxes (Details) [Line Items]    
Net operating loss carryforwards $ 8.0 $ 8.0
U S Federal Net Operating Loss [Member]    
Income Taxes (Details) [Line Items]    
Net operating loss carryforwards $ 0.1 $ 0.9