Fair Value Measurements (Details) (USD $)	3 Months Ended		12 Months Ended
	Jul. 28, 2012		Jan. 29, 2011	Jan. 28, 2012
Fair Value, Measurements, Recurring [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	$ 18,279,000	[1],[2]		$ 17,087,000	[1],[2]
Deferred non-employee director equity compensation plan liability, fair value	204,000	[1]		169,000	[1]
Fair Value, Measurements, Recurring [Member] | 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	18,279,000	[1],[2]		17,087,000	[1],[2]
Deferred non-employee director equity compensation plan liability, fair value	204,000	[1]		169,000	[1]
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [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	0	[1],[2]		0	[1],[2]
Deferred non-employee director equity compensation plan liability, fair value	0	[1]		0	[1]
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [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	0	[1],[2]		0	[1],[2]
Deferred non-employee director equity compensation plan liability, fair value	0	[1]		0	[1]
Fair Value, Measurements, Nonrecurring [Member]
Assets and liabilities measured at fair value on a nonrecurring basis [Abstract]
Store property, equipment and leasehold improvements, fair value	2,423,000	[3]		5,026,000	[3]
Long-lived assets, carrying value	2,700,000			5,500,000
Long-lived assets, estimated fair value	2,400,000			5,000,000
Impairment charges on store property, equipment and leasehold improvements	300,000		500,000
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a nonrecurring basis [Abstract]
Store property, equipment and leasehold improvements, fair value	0	[3]		0	[3]
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a nonrecurring basis [Abstract]
Store property, equipment and leasehold improvements, fair value	0	[3]		0	[3]
Fair Value, Measurements, Nonrecurring [Member] | 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	$ 2,423,000	[3]		$ 5,026,000	[3]

[1] Using the market approach, the fair values of these items represent quoted market prices multiplied by the quantities held. Net gains and losses related to the changes in fair value in the assets and liabilities under the various deferred compensation plans are recorded in selling, general and administrative expenses and were nil for the twenty-six weeks ended July 28, 2012 and for the fiscal year ended January 28, 2012.

[2] The Company has recorded in other long-term liabilities amounts related to these assets for the amount due to participants corresponding in value to the securities held in the grantor trust.

[3] In accordance with ASC No. 360-10, Accounting for the Impairment or Disposal of Long-Lived Assets, using an undiscounted cash flow model, the Company identified certain stores whose cash flow trends indicated that the carrying value of store property, equipment and leasehold improvements may not be fully recoverable and determined that impairment charges were necessary for the current year. The Company uses a discounted cash flow model to determine the fair value of its impaired assets. Key assumptions in determining future cash flows include, among other things, expected future operating performance and changes in economic conditions. Long-lived assets with a carrying amount of $2.7 million at July 28, 2012 and $5.5 million at January 28, 2012 were written down to their estimated fair value of $2.4 million at July 28, 2012 and $5.0 million at January 28, 2012, resulting in impairment charges of $0.3 million during the current year second quarter and $0.5 million during fiscal year 2011. The impairment charges are included in cost of sales and related buying, occupancy and distribution expenses in the Condensed Consolidated Statements of Income (Unaudited).