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Property and Equipment, Net (Tables)
6 Months Ended
Jul. 28, 2012
Property and Equipment, Net [Abstract]  
Property and equipment, net
 July 28, 2012 January 28, 2012
Property and equipment, at cost$ 2,818,463 $ 2,655,219
Accumulated depreciation and amortization (1,538,224)  (1,457,948)
      
Property and equipment, net$ 1,280,239 $ 1,197,271