Shareholders' Equity - Stock Options - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive and nonqualified option, shares outstanding	2,388,048	2,990,501
Shares available for award grants	2,441,561
Weighted-average grant-date fair value per share of options granted	$ 1.07	$ 1.65	$ 2.91
Intrinsic value of stock options exercised	$ 0.3	$ 0.2	$ 0.1
Shares exercised	143,900	70,825	6,500