Financing Arrangements - (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jan. 28, 2012
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility Outstanding Borrowings	$ 5,761	$ 5,700	$ 2,300
RevolvingCreditFacilityMember [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	35,000
Line of Credit Facility Outstanding Borrowings	$ 35,000
Line of Credit Facility, Expiration Date	Aug. 01, 2013
Interest on Borrowings Based on LIBOR	0.25%