Selected Quarterly Data - Schedule of Selected Quarterly Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May 02, 2015	Jan. 28, 2017		Jan. 30, 2016		Jan. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Sales	$ 122,646	$ 101,871	$ 117,875	$ 107,891	$ 124,044	$ 99,625	$ 114,147	$ 104,405	$ 450,283		$ 442,221		$ 414,020
Gross profit	55,034	45,238	54,843	49,766	56,853	44,864	53,883	48,239	204,881		203,839		190,014
Operating income (loss)	2,544	(3,639)	1,017	1,055	(546)	(4,626)	(166)	248	977		(5,090)		(8,802)
Income (loss) before taxes	1,823	(4,418)	234	271	(1,314)	(5,409)	(912)	(513)	(2,090)		(8,148)		(10,934)
Provision for income taxes	40	34	35	57	69	63	67	61	166	[1]	260	[1]	243	[1]
Net loss	$ 1,783	$ (4,452)	$ 199	$ 214	$ (1,383)	$ (5,472)	$ (979)	$ (574)	$ (2,256)		$ (8,408)		$ (12,295)
Earnings (loss) per share – basic and diluted	$ 0.04	$ (0.09)	$ 0.00	$ 0.00	$ (0.03)	$ (0.11)	$ (0.02)	$ (0.01)	$ (0.05)		$ (0.17)		$ (0.25)

[1] There was no provision (benefit) recognized on the loss from discontinued operations for fiscal 2014