Major Classes of Assets & Liabilities Included in Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 28, 2012	Jan. 28, 2012	Jul. 30, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets	$ 10,189	$ 12,296	$ 15,526
Non-current assets		15,722	18,064
Total assets	10,189	28,018	33,590
Total current liabilities	9,034	5,838	6,100
Total non-current liabilities	2,597	2,646	2,873
Total liabilities	$ 11,631	$ 8,484	$ 8,973