Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Operating leases - Schedule of Future Minimum Lease Payments for Operating Leases (Detail) - USD ($)
$ in Thousands
Apr. 30, 2019
Feb. 01, 2019
Leases [Abstract]    
2020 $ 616  
2021 678  
2022 650  
2023 224  
2024 26  
Total lease payments 2,194  
Less interest (230)  
Operating lease liability $ 1,964 $ 1,700