UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Aug. 02, 2014	Aug. 03, 2013
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 193,918	$ 186,235	$ 455,827	$ 426,228
Cost of goods sold, including wholesale, logistics and store occupancy costs	129,510	122,308	293,223	271,424
Gross profit	64,408	63,927	162,604	154,804
Store operating, selling and administrative expenses	46,625	43,642	95,577	88,754
Depreciation and amortization	4,060	3,319	7,640	6,644
Operating income	13,723	16,966	59,387	59,406
Interest expense, net	70	42	144	88
Income before provision for income taxes	13,653	16,924	59,243	59,318
Provision for income taxes	5,273	6,382	22,475	22,562
Net income	$ 8,380	$ 10,542	$ 36,768	$ 36,756
Earnings per share:
Basic (in dollars per share)	$ 0.33	$ 0.41	$ 1.43	$ 1.42
Diluted (in dollars per share)	$ 0.32	$ 0.40	$ 1.42	$ 1.40
Weighted average shares outstanding:
Basic (in dollars per share)	25,555	25,950	25,700	25,929
Diluted (in dollars per share)	25,806	26,318	25,968	26,323