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Goodwill (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Oct. 27, 2012
Oct. 29, 2011
Jan. 28, 2012
Jan. 29, 2011
Goodwill [Line Items]        
Goodwill $ 13,513 $ 12,423 $ 12,282 $ 0
Goodwill, Acquired During Period 0 21,507    
Goodwill, Purchase Accounting Adjustments 1,191 (8,873)    
Goodwill, Translation Adjustments $ 40 $ (211)