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Goodwill and Intangible Assets - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
May 02, 2015
May 03, 2014
Goodwill And Intangible Assets Disclosure [Abstract]    
Amortization of identifiable intangible assets $ 150us-gaap_AmortizationOfIntangibleAssets $ 150us-gaap_AmortizationOfIntangibleAssets
Estimated amortization of identifiable intangible assets, year one 598us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
Estimated amortization of identifiable intangible assets, year two 598us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
Estimated amortization of identifiable intangible assets, year three 598us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
Estimated amortization of identifiable intangible assets, year four 598us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
Estimated amortization of identifiable intangible assets, year five $ 598us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive