Annual report pursuant to section 13 and 15(d)

Fair Value Measurements (Details 1)

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Fair Value Measurements (Details 1) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Jan. 28, 2012
Oct. 29, 2011
Jul. 30, 2011
Jan. 29, 2011
Oct. 30, 2010
Jul. 31, 2010
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Long-lived assets held-for use                  
Fair value measurement             $ 421 $ 945  
Less: Carrying amount             2,463 6,799  
Realized loss $ (300) $ (700) $ (1,000) $ (2,500) $ (3,200) $ (200) $ (2,042) $ (5,854) $ (19,473)