Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	May 04, 2013		Apr. 28, 2012
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities held in grantor trust for deferred compensation plans	$ 21,294	[1],[2]	$ 18,498	[1],[2]
Deferred non-employee director equity compensation plan liability	311	[1]	253	[1]
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities held in grantor trust for deferred compensation plans	21,294	[1],[2]	18,498	[1],[2]
Deferred non-employee director equity compensation plan liability	$ 311	[1]	$ 253	[1]

[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 thirteen weeks ended May 4, 2013 and for the fiscal year ended February 2, 2013.

[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.