Discontinued Operations - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012 European Operations	Jul. 28, 2012 European Operations	Jan. 28, 2012 European Operations	Jan. 29, 2011 European Operations	Jan. 30, 2010 European Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Early termination fee and settlement					$ 1,100,000	$ 1,100,000
Net operating loss	5,267,000	7,998,000	9,421,000	13,181,000			(2,100,000)	(2,000,000)	(1,500,000)
Net sales	$ 100,504,000	$ 100,445,000	$ 196,043,000	$ 195,802,000			$ 1,800,000	$ 1,600,000	$ 1,200,000