Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Operating Leased Assets [Line Items]
Lease terms (in years)	10 years	10 years
Additional operating lease contracts that have not yet commenced, amount	$ 5.0
Office and warehouse space
Operating Leased Assets [Line Items]
Rent expense	$ 0.4
Lease expiration date	Jun. 30, 2022
Building
Operating Leased Assets [Line Items]
Rent expense	$ 1.0
Lease expiration date	Oct. 31, 2021
Building | Corporate headquarters and distribution center
Operating Leased Assets [Line Items]
Rent expense	$ 2.1	$ 2.1	$ 1.1
Building | 11 Whatney, Irvine, California | Minimum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	3.00%
Building | 11 Whatney, Irvine, California | Maximum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	7.00%
Building | 17 Pasteur, Irvine, California | Minimum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	3.00%
Building | 17 Pasteur, Irvine, California | Maximum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	7.00%