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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2022
Jan. 31, 2021
Summary of Significant Accounting Policies (Details) [Line Items]        
Cash and cash equivalents (in Dollars) $ 65,000   $ 65,000  
Hedge fund investment (in Dollars) $ 5,000   $ 5,000  
Debt due 12 months   12 months  
Losses on related party receivables (in Dollars)     $ 188  
Concentration risk, percentage 57.00%   63.00%  
Accounts Receivable [Member]        
Summary of Significant Accounting Policies (Details) [Line Items]        
Concentration risk, percentage   62.00%   59.00%
One Customers [Member] | Revenue Net [Member]        
Summary of Significant Accounting Policies (Details) [Line Items]        
Concentration risk, percentage     65.00%  
One Customers [Member] | Accounts Receivable [Member]        
Summary of Significant Accounting Policies (Details) [Line Items]        
Concentration risk, percentage       68.00%
Two Customers [Member] | Revenue Net [Member]        
Summary of Significant Accounting Policies (Details) [Line Items]        
Concentration risk, percentage     15.00%