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Intangible Assets - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 30, 2016
Aug. 01, 2015
Jul. 30, 2016
Aug. 01, 2015
Impairment of Intangible Assets (Excluding Goodwill) [Abstract]        
Impairments of intangible assets $ 0 $ 0 $ 0 $ 0
Amortization expense $ 179,000 $ 105,000 $ 358,000 $ 194,000