Impairment of Long-Lived Assets - Details of Long-Lived Assets Tested and Impaired (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Aug. 03, 2013 Store	Jul. 28, 2012 Store
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying value of assets tested for impairment	$ 2,650	$ 9,016
Carrying value of assets with impairment	1,203	1,955
Fair value of assets impaired	$ 633	$ 813
Number of stores tested for impairment	60	116
Number of stores with impairment	12	23