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Fair Value Measurements (Schedule of Assets Measure at Fair Value on Recurring Basis) (Details) - USD ($)
$ in Thousands
Apr. 30, 2016
Jan. 30, 2016
May. 02, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund $ 5,388 $ 5,386 $ 5,280
Fair Value, Inputs, Level 1 [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund 5,388 5,386 5,280
Fair Value, Inputs, Level 2 [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund 0 0 0
Fair Value, Inputs, Level 3 [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash equivalents - money market fund $ 0 $ 0 $ 0