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Fair Value Measurements (Schedule of Assets Measure at Fair Value on Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Aug. 03, 2013
Feb. 02, 2013
Jul. 28, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund $ 2,262 $ 5,259 $ 10,252
Level 1 [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund 2,262 5,259 10,252
Level 2 [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund         
Level 3 [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund