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Leases - Schedule Of Balance Sheet And Other Information Related To Operating Leases (Detail) - USD ($)
$ in Thousands
Jan. 31, 2021
Jan. 31, 2020
Operating Leases [Abstract]    
Right of Use Assets $ 1,389 $ 1,661
Other Accrued Expenses 372 416
Lease Liabilities $ 1,065 $ 1,279