Summary of Activity for Non-Vested Shares (Restricted Shares) (Detail) (Restricted Stock, Employee Stock Plan, 2006 Plan, USD $)	12 Months Ended
	Feb. 02, 2013
Restricted Stock | Employee Stock Plan, 2006 Plan
Number of Shares
Restricted shares outstanding at beginning of year	937,604
Restricted shares granted	5,000
Restricted shares vested	(424,460)
Restricted shares canceled	(34,741)
Restricted shares outstanding at end of year	483,403
Weighted-average Grant-Date Fair value
Restricted shares outstanding at beginning of year	$ 3.43	[1]
Restricted shares granted	$ 4.40	[1]
Restricted shares vested	$ 2.86	[1]
Restricted shares canceled	$ 3.90	[1]
Restricted shares outstanding at end of year	$ 3.90	[1]

[1] The fair value of a restricted share is equal to the Company's closing stock price on the date of grant.