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INTEREST INCOME (EXPENSE), NET (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Jul. 28, 2012
Components of interest income (expense), net        
Interest income $ 251 $ 228 $ 502 $ 451
Less:        
Interest expense - credit facilities 34 39 60 76
Unused line fee 66 110 140 224
Amortization of deferred financing costs 91 91 182 182
Other interest and fees 60 18 60 50
Total interest expense 251 258 442 532
Interest (expense), net $ 0 $ (30) $ 60 $ (81)