CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 972,960	$ 943,104	$ 913,486
Cost of goods sold, including wholesale and logistics facility and store occupancy costs	634,364	610,389	586,702
Gross profit	338,596	332,715	326,784
Store operating, selling and administrative expenses	222,785	203,673	192,648
Depreciation and amortization	19,047	17,038	15,990
Operating income	96,764	112,004	118,146
Interest income	24	31	22
Interest expense	(292)	(323)	(315)
Interest expense, net	(268)	(292)	(293)
Income before provision for income taxes	96,496	111,712	117,853
Provision for income taxes	35,421	41,184	44,269
Net income	$ 61,075	$ 70,528	$ 73,584
Basic earnings per share (in dollars per share)	$ 2.75	$ 2.95	$ 2.90
Diluted earnings per share (in dollars per share)	$ 2.72	$ 2.92	$ 2.87
Weighted average shares outstanding:
Basic (in shares)	22,240	23,947	25,369
Diluted (in shares)	22,427	24,129	25,620