Net Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Basic Earnings per Share:
Net income	$ 10,817	$ 10,916	$ 22,552	$ 26,273
Amount allocated to participating securities	(202)	(185)	(405)	(466)
Net income available for basic common shares and basic earnings per share	10,615	10,731	22,147	25,807
Net income available for basic common shares and basic earnings per share, Shares	19,716	19,942	19,844	19,918
Net income available for basic common shares and basic earnings per share, Per Share Amount	$ 0.54	$ 0.54	$ 1.12	$ 1.30
Diluted Earnings per Share:
Net income	10,817	10,916	22,552	26,273
Amount allocated to participating securities	(202)	(185)	(405)	(466)
Adjustment for dilutive potential common shares
Adjustment for dilutive potential common shares, Shares	13	20	15	21
Net income available for diluted common shares and diluted earnings per share	$ 10,615	$ 10,731	$ 22,147	$ 25,807
Net income available for diluted common shares and diluted earnings per share, Shares	19,729	19,962	19,859	19,939
Net income available for diluted common shares and diluted earnings per share, Per Share Amount	$ 0.54	$ 0.54	$ 1.12	$ 1.29