Property and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Property and Equipment (Textual) [Abstract]
Depreciation and amortization expense related to property and equipment	$ 3.1	$ 3.1	$ 6.2	$ 6.0