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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 12 Months Ended
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Fair Value Measurements [Abstract]          
Long-lived assets, gross carrying amount   $ 1,100 $ 779 $ 1,100 $ 1,700
Long-lived assets, fair value   772 667 772 1,300
Long-lived assets, impairment charges    350 112 350 425
Remaining unamortized basis   $ 328   $ 328 $ 328