Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Schedule of Components of Lease Expense (Detail)

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Operating Leases - Schedule of Components of Lease Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Leases [Abstract]    
Operating lease cost $ 143 $ 283
Short term lease cost, net 4 5
Total lease cost $ 147 $ 288