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, 2019
Feb. 01, 2019
Leases [Abstract]    
2020 $ 192  
2021 573  
2022 545  
2023 526  
2024 516  
Thereafter 497  
Total lease payments 2,849  
Less interest 282  
Operating lease liability $ 2,567 $ 1,700