Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Additional Information (Detail)

v3.22.2.2
Operating Leases - Additional Information (Detail)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 31, 2022
USD ($)
Jul. 31, 2021
USD ($)
Jul. 31, 2022
USD ($)
SubleaseAgreement
Jul. 31, 2021
USD ($)
Jan. 31, 2024
SubleaseAgreement
Jan. 31, 2023
SubleaseAgreement
Jan. 31, 2022
USD ($)
Operating Leases Description [Line Items]              
Cash payment made on termination   $ 100   $ 400      
Net gain (loss) on termination of lease       $ (328)      
Number of operating sublease agreements | SubleaseAgreement     3        
Sublease income $ 60   $ 104        
Scenario Forecast [Member]              
Operating Leases Description [Line Items]              
Number of operating sublease agreements | SubleaseAgreement         1 2  
Lease Termination Agreement [Member]              
Operating Leases Description [Line Items]              
Total termination payment made     $ 400        
Non cash gain on operating lease             $ 300
Net gain (loss) on termination of lease             $ (100)