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Fair Value Measurements (Schedule of Assets Measure at Fair Value on Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
May 04, 2013
Feb. 02, 2013
Apr. 28, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund $ 5,261 $ 5,259 $ 20,243
Level 1 [Member]
     
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund 5,261 5,259 20,243
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