Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019
Commitments And Contingencies Disclosure [Abstract]
Operating lease, Weighted-average remaining lease term	4 years 10 months 24 days
Operating lease, Weighted-average IBR	8.80%
Operating lease, right-of-use asset	$ 1,600
Fiscal 2021	430
Fiscal 2022	442
Fiscal 2023	425
Fiscal 2024	434
Fiscal 2025	333
Total future minimum lease payments	2,064
Less imputed interest	(381)
Present value of operating lease liabilities	1,683
Operating lease cost excluding variable lease costs and sublease income expense	$ 500	$ 800
Fiscal 2020		854
Fiscal 2021		865
Fiscal 2022		876
Fiscal 2023		857
Fiscal 2024		863
Thereafter		1,673
Total future minimum lease payments		$ 5,988

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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