Debt - Schedule of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011
Proforma Debt Instrument [Line Items]
8.2% term loan	$ 9,801
Less amounts due within one year	768				708
Total long-term debt	9,033	9,231	9,425	9,615	9,801	9,983	10,162	10,337
8.2% Term Loan [Member]
Proforma Debt Instrument [Line Items]
8.2% term loan	$ 9,801				$ 10,509