Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Income Statement [Abstract]
Net sales	$ 144,979	$ 138,240	$ 409,503	$ 391,168
Cost of sales	82,773	78,637	234,068	224,127
Cost of sales related to merchandise purchased from related party vendor	11,668	9,125	32,278	24,753
Cost of sales (exclusive of depreciation as shown below)	94,441	87,762	266,346	248,880
Gross profit	50,538	50,478	143,157	142,288
Operating expenses:
Compensation and benefits	28,072	27,050	80,556	77,507
Other operating expenses	19,427	18,601	54,501	52,057
Depreciation	6,806	6,435	19,841	18,703
Total operating expenses	54,305	52,086	154,898	148,267
Operating loss	(3,767)	(1,608)	(11,741)	(5,979)
Interest expense	69	67	195	206
Other income	(229)	(61)	(448)	(172)
Loss before income taxes	(3,607)	(1,614)	(11,488)	(6,013)
Income tax benefit	(1,245)	(768)	(3,919)	(2,516)
Net loss	$ (2,362)	$ (846)	$ (7,569)	$ (3,497)
Loss per share:
Basic (usd per share)	$ (0.15)	$ (0.05)	$ (0.48)	$ (0.22)
Diluted (usd per share)	$ (0.15)	$ (0.05)	$ (0.48)	$ (0.22)
Weighted average shares outstanding:
Basic (in shares)	16,013	15,897	15,932	15,844
Diluted (in shares)	16,013	15,897	15,932	15,844