Condensed Consolidated Statements of Income (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
Income Statement [Abstract]
Net sales	$ 176,709	$ 157,858	$ 339,641	$ 306,354
Cost of goods sold	115,797	102,738	228,196	203,262
Gross profit	60,912	55,120	111,445	103,092
Selling, general and administrative expenses	49,307	47,285	96,127	91,228
Operating profit	11,605	7,835	15,318	11,864
Interest income, net	146	158	328	373
Other income (expense), net	203	(174)	289	(320)
Earnings before income taxes	11,954	7,819	15,935	11,917
Provision for income taxes	4,498	3,080	5,983	4,680
Net income	$ 7,456	$ 4,739	$ 9,952	$ 7,237
Basic earnings per share	$ 0.26	$ 0.16	$ 0.35	$ 0.24
Diluted earnings per share	$ 0.26	$ 0.16	$ 0.34	$ 0.24
Weighted average shares used in computation of earnings per share:
Basic	28,776	29,842	28,819	29,770
Diluted	29,057	30,232	29,182	30,221