CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 943,104	$ 913,486	$ 851,965
Cost of goods sold, including wholesale and logistics facility and store occupancy costs	610,389	586,702	542,700
Gross profit	332,715	326,784	309,265
Store operating, selling and administrative expenses	203,673	192,648	181,527
Depreciation and amortization	17,038	15,990	13,847
Operating income	112,004	118,146	113,891
Interest income	31	22	11
Interest expense	(323)	(315)	(199)
Interest expense, net	(292)	(293)	(188)
Income before provision for income taxes	111,712	117,853	113,703
Provision for income taxes	41,184	44,269	42,826
Net income	$ 70,528	$ 73,584	$ 70,877
Basic earnings per share (in dollars per share)	$ 2.95	$ 2.90	$ 2.74
Diluted earnings per share (in dollars per share)	$ 2.92	$ 2.87	$ 2.70
Weighted average shares outstanding:
Basic (in shares)	23,947	25,369	25,870
Diluted (in shares)	24,129	25,620	26,266