Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Additional Information (Detail)

v3.21.2
Operating Leases - Additional Information (Detail)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2021
USD ($)
Sublease_agreement
Oct. 31, 2021
USD ($)
Significant Accounting Policies [Line Items]    
Net gain (loss) on termination of lease   $ 328
Number of operating sublease agreements | Sublease_agreement 2  
Sublease income $ 32 32
Termination Agreement [Member]    
Significant Accounting Policies [Line Items]    
Termination payment made   400
Non cash gain on operating lease   300
Net gain (loss) on termination of lease   $ (100)