Discontinued Operations - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales of discontinued store	$ 0	$ 400,000	$ 0	$ 3,100,000
Loss from discontinued operations	$ 0	$ (9,000)	$ 0	$ (123,000)
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores discontinued	4	4	4	4