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Employee Retention Credit - Additional Information (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jun. 30, 2021
Jan. 31, 2022
Jul. 01, 2022
Mar. 22, 2022
Employee Retention Credit Disclosure [Line Items]            
ERC receivable       $ 3,135 $ 3,100  
Subsequent Event [Member]            
Employee Retention Credit Disclosure [Line Items]            
ERC receivable           $ 3,100
Cost of Sales [Member]            
Employee Retention Credit Disclosure [Line Items]            
Employee Retention Credit Receivable - cost of revenue       1,700    
Selling and Marketing Expense [Member]            
Employee Retention Credit Disclosure [Line Items]            
Employee Retention Credit Receivable - selling and marketing       800    
Research and Development Expense [Member]            
Employee Retention Credit Disclosure [Line Items]            
Employee Retention Credit Receivable - research and development       300    
General and Administrative Expense [Member]            
Employee Retention Credit Disclosure [Line Items]            
Employee Retention Credit Receivable - general and administrative expenses       $ 300    
Prepaid Expenses and Other Current Assets [Member]            
Employee Retention Credit Disclosure [Line Items]            
Employee retention credit   $ 3,100        
Cares Act [Member]            
Employee Retention Credit Disclosure [Line Items]            
Percentage of refundable tax credit can be claimed of qualified wages     70.00%      
Threshold qualified wages per employee per calendar quarter     $ 10,000      
Maximum threshold employee retention credit per employee per calendar quarter     $ 7,000      
Percentage of reduction of gross Receipts to qualify for employee retention credit       20.00%    
Cares Act [Member] | Prepaid Expenses and Other Current Assets [Member]            
Employee Retention Credit Disclosure [Line Items]            
Employee Retention Credit Receivable - cost of revenue $ 3,100