Net (Loss) Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Numerator:
Net (loss) income	$ (2,442)	$ 1,847	$ 7,234	$ 17,225
Denominator:
Basic-weighted average shares	14,703	15,289	14,672	14,855
Dilutive effect: equity awards		1,068	486	1,039
Dilutive effect: warrant		107	107	107
Diluted-weighted average shares	14,703	16,464	15,265	16,001
Basic (loss) income per share	$ (0.17)	$ 0.12	$ 0.49	$ 1.16
Diluted (loss) income per share	$ (0.17)	$ 0.11	$ 0.47	$ 1.08
Antidilutive effect	2,849	577	1,328	537