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Summary of Business and Significant Accounting Policies - Concentrations of Credit Risk (Details) - Accounts Receivable - Customer Concentration Risk
12 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Customer One    
Concentration Risk [Line Items]    
Concentration risk, percentage 10.00% 12.00%
Customer Two    
Concentration Risk [Line Items]    
Concentration risk, percentage 10.00%