Stock Repurchase Program And Shares Withheld From Vested Restricted Shares (Shares Withheld Activities) (Details) (Restricted Stock [Member], USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 30, 2011	Oct. 31, 2010	Oct. 30, 2011	Oct. 31, 2010
Restricted Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares withheld from vested restricted shares	1,322	3,310	23,835	85,397
Value of shares withheld from vested restricted shares	$ 28	$ 54	$ 579	$ 1,456