Preferred Stock Purchase Rights (Details) (USD $)	12 Months Ended
	Jan. 28, 2012	Jan. 28, 2012 Common Class A [Member]	Jan. 29, 2011 Common Class A [Member]
Common Stock, Par or Stated Value Per Share		$ 0.01	$ 0.01
Stockholders' Equity Note, Stock Split, Conversion Ratio	0.50
Beneficial Interest Liability Percent	20.00%
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 250
Beneficial Liability Acquiring Person	50.00%
Exchange Ratio for One share of Common Stock	0.50
Stock Rights Par Value	$ 0.01