Selected Quarterly Data - Schedule of Selected Quarterly Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 30, 2021	Oct. 31, 2020	Aug. 01, 2020	May 02, 2020	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Quarterly Financial Information Disclosure [Abstract]
Sales	$ 100,106	$ 85,171	$ 76,442	$ 57,227	$ 131,239	$ 106,581	$ 123,245	$ 112,973	$ 318,946	$ 474,038	$ 473,756
Gross profit	39,082	31,072	21,497	13,214	56,414	43,805	54,569	49,413	104,865	204,201	211,289
Operating income (loss)	(3,997)	(5,915)	(9,638)	(40,965)	3,332	(6,369)	881	(2,238)	(60,515)	(4,394)	(10,119)
Loss before taxes	(5,041)	(6,995)	(10,690)	(41,706)	2,620	(7,239)	30	(3,102)	(64,432)	(7,691)	(13,581)
Income tax provision (benefit)	35	27	24	20	183	(49)	(8)	(21)	106	105	(50)
Net loss	$ (5,076)	$ (7,022)	$ (10,714)	$ (41,726)	$ 2,437	$ (7,190)	$ 38	$ (3,081)	$ (64,538)	$ (7,796)	$ (13,531)
Income (loss) per share – basic and diluted	$ (0.10)	$ (0.14)	$ (0.21)	$ (0.82)	$ 0.05	$ (0.14)	$ 0.00	$ (0.06)	$ (1.26)	$ (0.16)	$ (0.28)