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Components of Long Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Nov. 01, 2014
Feb. 01, 2014
Debt Instrument [Line Items]    
Total long-term debt $ 35,989 $ 16,706
Current portion of long-term debt 7,473 4,561
Long-term debt, net of current portion 28,516 12,145
Equipment financing notes
   
Debt Instrument [Line Items]    
Total long-term debt 20,989 16,706
Term loan, due 2019
   
Debt Instrument [Line Items]    
Total long-term debt $ 15,000