UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	May 05, 2018	Apr. 29, 2017
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 274,707	$ 275,688
Cost of goods sold	177,934	177,470
Gross margin	96,773	98,218
Store operating, selling and administrative expenses	61,904	58,337
Depreciation and amortization	6,248	5,713
Operating income	28,621	34,168
Interest expense, net	57	66
Income before provision for income taxes	28,564	34,102
Provision for income taxes	7,055	13,192
Net income	$ 21,509	$ 20,910
Basic earnings per share (in dollars per share)	$ 1.13	$ 0.98
Diluted earnings per share (in dollars per share)	$ 1.12	$ 0.97
Weighted average shares outstanding:
Basic (in dollars per share)	18,970	21,316
Diluted (in dollars per share)	19,143	21,466