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Equity (Details) - Schedule of grants of restricted shares of Class B common stock - $ / shares
 12 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Schedule Of Grants Of Restricted Shares Of Class BCommon Stock Abstract    
Number of Non-vested Shares, Outstanding beginning balance 1,007,975 123,104
Weighted Average Grant Date Fair Value, Outstanding beginning balance $ 46.77 $ 10.8
Number of Non-vested Shares, Granted 1,533,311 956,317
Weighted Average Grant Date Fair Value, Granted $ 4.24 $ 48.34
Number of Non-vested Shares, Vested (90,608) (69,347)
Weighted Average Grant Date Fair Value, Vested $ 16.86 $ (10.76)
Number of Non-vested Shares, Cancelled / Forfeited (943,305) (2,099)
Weighted Average Grant Date Fair Value, Cancelled / Forfeited $ (48.5) $ (13.54)
Number of Non-vested Shares, Ending Balance 1,507,373 1,007,975
Weighted Average Grant Date Fair Value, Ending Balance $ 4.22 $ 46.77