UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 228,301	$ 218,321	$ 697,385	$ 674,148
Cost of goods sold, including wholesale, logistics and store occupancy costs	145,949	139,171	450,140	432,394
Gross profit	82,352	79,150	247,245	241,754
Store operating, selling and administrative expenses	48,255	48,202	150,206	143,778
Depreciation and amortization	4,238	4,136	12,656	11,777
Operating income	29,859	26,812	84,383	86,199
Interest expense, net	67	73	201	216
Income before provision for income taxes	29,792	26,739	84,182	85,983
Provision for income taxes	11,115	9,849	31,065	32,324
Net income	$ 18,677	$ 16,890	$ 53,117	$ 53,659
Earnings per share:
Basic (in dollars per share)	$ 0.79	$ 0.67	$ 2.18	$ 2.10
Diluted (in dollars per share)	$ 0.79	$ 0.67	$ 2.17	$ 2.08
Weighted average shares outstanding:
Basic (in dollars per share)	23,607	25,111	24,333	25,504
Diluted (in dollars per share)	23,777	25,336	24,519	25,758