Net Income Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Basic Earnings per Share:
Net income	$ 9,519	$ 11,020
Amount allocated to participating securities	(188)	(198)
Net income available for basic common shares and basic earnings per share	9,331	10,822
Net income available for basic common shares and basic earnings per share, Shares	19,877	19,880
Net income available for basic common shares and basic earnings per share, Per Share Amount	$ 0.47	$ 0.54
Diluted Earnings per Share:
Net income	9,519	11,020
Amount allocated to participating securities	(188)	(198)
Adjustment for dilutive potential common shares
Adjustment for dilutive potential common shares, Shares	20	91
Net income available for diluted common shares and diluted earnings per share	$ 9,331	$ 10,822
Net income available for diluted common shares and diluted earnings per share, Shares	19,897	19,971
Net income available for diluted common shares and diluted earnings per share, Per Share Amount	$ 0.47	$ 0.54