Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Detail)

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Operating Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Detail) - USD ($)
$ in Thousands
Oct. 31, 2020
Jan. 31, 2020
Leases [Abstract]    
2021 $ 298  
2022 1,319  
2023 1,445  
2024 1,482  
2025 1,524  
Thereafter 59  
Total lease payments 6,127  
Less interest 477  
Total operating lease liabilities $ 5,650 $ 5,070