Unaudited Quarterly Results of Operations (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Statement of Income Data:
Net sales	$ 175,656	$ 148,985	$ 132,318	$ 197,694	$ 178,356	$ 143,067	$ 130,233	$ 189,168	$ 654,653	$ 640,824	$ 622,528
Cost of sales	118,165	97,808	87,903	123,028	124,532	94,909	86,781	114,099	426,904	420,321	383,318
Gross profit	57,491	51,177	44,415	74,666	53,824	48,158	43,452	75,069	227,749	220,503	239,210
Selling, general and administrative expenses	52,678	51,132	50,932	52,669	52,206	53,059	50,688	51,072	207,411	207,025	187,231
Depreciation and amortization	5,797	5,970	6,038	6,145	6,569	6,454	6,351	5,584	23,950	24,958	20,324
Asset impairment	517	660			4,209	696	1,609		1,177	6,514	211
(Loss) income from operations	(1,501)	(6,585)	(12,555)	15,852	(9,160)	(12,051)	(15,196)	18,413	(4,789)	(17,994)	31,444
Interest, net	17	16	2	13	11	44	59	50
(Loss) income before income taxes	(1,484)	(6,569)	(12,553)	15,865	(9,149)	(12,007)	(15,137)	18,463	(4,741)	(17,830)	31,594
Income tax (benefit) expense	(780)	(2,869)	(4,628)	5,761	(3,834)	(5,246)	(5,106)	6,370	(2,516)	(7,816)	10,742
Net (loss) income	$ (704)	$ (3,700)	$ (7,925)	$ 10,104	$ (5,315)	$ (6,761)	$ (10,031)	$ 12,093	$ (2,225)	$ (10,014)	$ 20,852
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.05)	$ (0.25)	$ (0.54)	$ 0.69	$ (0.36)	$ (0.46)	$ (0.69)	$ 0.83	$ (0.15)	$ (0.69)	$ 1.44
Diluted (in dollars per share)	$ (0.05)	$ (0.25)	$ (0.54)	$ 0.69	$ (0.36)	$ (0.46)	$ (0.69)	$ 0.83	$ (0.15)	$ (0.69)	$ 1.44
Weighted average shares used to compute net (loss) income per common share:
Basic (in shares)	14,698,736	14,676,817	14,673,403	14,635,509	14,605,575	14,601,544	14,595,985	14,553,884	14,671,638	14,589,247	14,503,418
Diluted (in shares)	14,698,736	14,676,817	14,673,403	14,636,918	14,605,575	14,601,544	14,595,985	14,567,423	14,671,638	14,589,247	14,522,662