Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Operating Leased Assets [Line Items]
Lease terms (in years)	10 years
Gross amount of building under capital lease	$ 0	$ 7,840
Office and warehouse space
Operating Leased Assets [Line Items]
Rent expense	$ 400
Lease expiration date	Jun. 30, 2022
Office and warehouse space | Minimum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	3.00%
Office and warehouse space | Maximum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	7.00%
Building
Operating Leased Assets [Line Items]
Rent expense	$ 1,000	900	$ 900
Lease expiration date	Oct. 31, 2021
Building | Minimum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	3.00%
Building | Maximum
Operating Leased Assets [Line Items]
Annual lease adjustment rate (percent)	7.00%
Building | Corporate headquarters and distribution center
Operating Leased Assets [Line Items]
Rent expense	$ 200
Capital lease obligation outstanding		800
Gross amount of building under capital lease		7,800
Accumulated amortization of the building under capital lease		7,400
Land | Corporate headquarters and distribution center
Operating Leased Assets [Line Items]
Rent expense	$ 1,100	$ 1,000	$ 900