Summary of Activity for Non-vested Shares (Restricted Shares) (Detail) (USD $)	9 Months Ended
	Nov. 01, 2014
Deferred Stock
Number of Shares
Shares granted	8,345
Employee Stock Plan, 2006 Plan
Number of Shares
Shares granted	8,345
Employee Stock Plan, 2006 Plan | Restricted Stock
Number of Shares
Restricted shares outstanding at beginning of year	2,017,940
Shares granted	97,950
Restricted shares vested	(143,203)
Restricted shares canceled	(67,974)
Weighted-average Grant-Date Fair value
Restricted shares outstanding at beginning of year	$ 5.01	[1]
Shares granted	$ 5.32	[1]
Restricted shares vested	$ 4.31	[1]
Restricted shares canceled	$ 5.00	[1]
Employee Stock Plan, 2006 Plan | Deferred Stock
Number of Shares
Shares granted	8,345	[2]
Weighted-average Grant-Date Fair value
Shares granted	$ 5.22	[1],[2]
Employee Stock Plan, 2006 Plan | Restricted And Deferred Shares
Number of Shares
Restricted and Deferred shares outstanding at end of quarter	1,913,058
Weighted-average Grant-Date Fair value
Restricted and Deferred shares outstanding at end of quarter	$ 5.08	[1]

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

[2] During the first nine months of fiscal 2014, the Company granted 8,345 shares of deferred stock, with a fair value of approximately $43,561 to a director as compensation in lieu of cash and in accordance with his irrevocable election. The shares of deferred stock will vest three years from the date of grant.