Impairments - Additional Information (Details)	3 Months Ended		9 Months Ended
	Oct. 31, 2020 USD ($) store	Nov. 02, 2019 USD ($) store	Oct. 31, 2020 USD ($) store	Nov. 02, 2019 USD ($) store	Feb. 01, 2020 USD ($)	May 04, 2019 USD ($)
Impaired Long Lived Assets Held And Used [Line Items]
Accumulated deficit	$ (100,375,000)	$ (91,012,000)	$ (100,375,000)	$ (91,012,000)	$ (95,930,000)
Impairment of operating lease right-of-use assets	15,000	41,000	6,200,000	525,000
Impairment of leasehold improvements, fixtures, and equipment	162,000	3,400,000	2,800,000	6,700,000
impairment net of tax	$ 121,000	$ 2,500,000	$ 6,900,000	$ 5,500,000
Right of Use Asset [Member]
Impaired Long Lived Assets Held And Used [Line Items]
Number of Store Locations with Impairment | store	2	1	24	3
Property and Equipment [Member]
Impaired Long Lived Assets Held And Used [Line Items]
Number of Store Locations with Impairment | store	4	17	22	22
Cumulative Effect, Period of Adoption, Adjustment | Cumulative Effect of Change in Accounting Principle
Impaired Long Lived Assets Held And Used [Line Items]
Accumulated deficit						$ 300,000