Stock Based Compensation Additional - (Details) (Class A Common Stock, USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011	Jan. 28, 2012
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized Compensation Expense	$ 7,000,000	$ 6,700,000	$ 7,000,000	$ 6,700,000	$ 6,000,000
Remaining Weighted-Average Vesting Period	2 years 6 months 180 days	2 years 6 months 180 days			2 years 2 months 12 days
Compensation Expense	631,000	613,000	2,029,000	1,870,000
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation Expense	0	0	0	0
Intrinsic Value	23,000	0	73,000	41,000
Options Granted	0	0	0	0
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Sold			21,463	21,810
Compensation Expense			$ 82,000	$ 78,000
Employee Stock Purchase Plan Share Purchase Discount	$ 3.81	$ 3.59	$ 3.81	$ 3.59