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Stock-Based Compensation (Details 8) (Stock Appreciation Rights (SARs), USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jul. 28, 2012
Jul. 30, 2011
Jul. 28, 2012
Jul. 30, 2011
Stock Appreciation Rights (SARs)
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense before the recognized income tax benefit $ 80 $ 60 $ 149 $ 132
Income tax benefit (1) $ 31 [1] $ 23 [1] $ 57 [1] $ 50 [1]
[1] Income tax benefit was calculated using an adjusted effective tax rate. The adjusted rate removes the tax effects from the favorable resolution of certain tax positions.