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INTEREST INCOME (EXPENSE), NET (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Nov. 01, 2014
Nov. 02, 2013
Nov. 01, 2014
Nov. 02, 2013
Components of interest income (expense), net        
Interest income $ 268 $ 290 $ 851 $ 792
Less:        
Interest expense - credit facilities 23 33 75 93
Unused line fee 104 74 328 214
Amortization of deferred financing costs 88 91 264 273
Other interest and fees 30 10 73 70
Total interest expense 350 208 974 650
Interest (expense), net (82) 82 (123) 142
interestrevolvingloan [Member]
        
Less:        
Interest expense - credit facilities $ 105 $ 0 $ 234 $ 0