Significant Components of Deferred Tax Assets And Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012
Current deferred tax assets (liabilities):
Inventory	$ 725	$ 647
Other assets, net	189	642
State taxes	(295)	(560)
Vacation accrual	1,288	1,029
Deferred compensation	2,106	1,694
Accrued expense and other	6,651	2,501
Net current deferred tax assets	10,664	5,953
Long-term deferred tax assets (liabilities):
Depreciation	(5,100)	(4,594)
Deferred rent	3,264	3,575
Stock-based compensation expense	4,231	3,695
Other assets, net	219	428
Total long-term deferred tax assets	2,614	3,104
Net deferred tax assets	$ 13,278	$ 9,057