Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Jan. 28, 2012	Feb. 02, 2013	Jan. 29, 2011
Income Taxes [Line Items]
Income tax liability associated with unrecognized tax benefits	$ 2,000,000	$ 1,900,000
Income tax liability associated with unrecognized tax benefits, net of federal benefits	900,000	800,000
Income tax liability associated with unrecognized tax benefits, interest	300,000	100,000
Income tax liability associated with unrecognized tax benefits, interest net of federal benefit	200,000	100,000
Income tax liability associated with unrecognized tax benefits, penalties	100,000	200,000
Income tax liability associated with unrecognized tax benefits, gross	1,596,000	1,560,000	2,017,000
Tax expenses related to interest and penalties	100,000
Accrued interest and penalties related to uncertain tax positions	400,000	300,000
Unrecognized Tax Benefits, which may be Recognized in 12 Months
Income Taxes [Line Items]
Income tax liability associated with unrecognized tax benefits, net of federal benefits		600,000
Income tax liability associated with unrecognized tax benefits, interest		100,000
Income tax liability associated with unrecognized tax benefits, interest net of federal benefit		100,000
Income tax liability associated with unrecognized tax benefits, gross		$ 1,200,000