Net Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Basic Earnings per Share:
Net income	$ 2,859	$ 2,715	$ 13,879	$ 12,634
Amount allocated to participating securities	(70)	(52)	(299)	(297)
Net income available for basic common shares and basic earnings per share	2,789	2,663	13,580	12,337
Weighted average common shares - Basic (in shares)	19,934	19,508	19,907	19,408
Basic (in dollars per share)	$ 0.14	$ 0.14	$ 0.68	$ 0.64
Diluted Earnings per Share:
Net income	2,859	2,715	13,879	12,634
Amount allocated to participating securities	(69)	(52)	(298)	(293)
Adjustment for dilutive potential common shares	76	206	84	203
Net income available for diluted common shares and diluted earnings per share	$ 2,790	$ 2,663	$ 13,581	$ 12,341
Weighted average common shares - diluted (in shares)	20,010	19,714	19,991	19,611
Diluted (in dollars per share)	$ 0.14	$ 0.14	$ 0.68	$ 0.63