Fair Value Measurements (Details) (USD $)	9 Months Ended	12 Months Ended
	Oct. 27, 2012	Jan. 28, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities held in grantor trust for deferred compensation plans, carrying value	$ 18,097,000	$ 17,087,000
Deferred non-employee director equity compensation plan liability, fair value	265,000	169,000
Assets and liabilities measured at fair value on a nonrecurring basis [Abstract]
Store property, equipment and leasehold improvements, fair value	1,972,000	5,026,000
Impairment charges on store property, equipment and leasehold improvements	300,000	500,000
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities held in grantor trust for deferred compensation plans, carrying value	18,097,000	17,087,000
Deferred non-employee director equity compensation plan liability, fair value	265,000	169,000
Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a nonrecurring basis [Abstract]
Store property, equipment and leasehold improvements, fair value	$ 1,972,000	$ 5,026,000