Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended
	Apr. 30, 2011	May 01, 2010
Condensed Consolidated Statements of Income [Abstract]
Net sales	$ 193,270	$ 178,125
Cost of goods sold	67,957	64,809
Gross profit	125,313	113,316
Operating expenses:
Sales and marketing, including occupancy costs	78,852	70,519
General and administrative	17,424	16,736
Total operating expenses	96,276	87,255
Operating income	29,037	26,061
Other income (expense):
Interest income	132	115
Interest expense	(3)	(90)
Total other income (expense)	129	25
Income before provision for income taxes	29,166	26,086
Provision for income taxes	11,356	10,278
Net income	$ 17,810	$ 15,808
Earnings per share:
Basic	$ 0.64	$ 0.57
Diluted	$ 0.64	$ 0.57
Weighted average shares outstanding:
Basic	27,622	27,527
Diluted	27,928	27,818