Acquisition (Details) (Liquidation World, Inc. [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jul. 28, 2012	Jul. 18, 2011
Liquidation World, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	July 18, 2011
Business Acquisition, Cost of Acquired Entity, Cash Paid		$ 1.9