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Potential Common Stock Equivalents Excluded From Computation of Diluted Earning Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
	Aug. 03, 2013	Jul. 28, 2012	Aug. 03, 2013	Jul. 28, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	231,000		273,000
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	2,077,000	1,702,000	2,323,000	1,702,000
Range of exercise prices of such stock options, minimum	$ 0.0496	$ 0.0376	$ 0.0496	$ 0.0376
Range of exercise prices of such stock options, maximum	$ 0.1026	$ 0.1026	$ 0.1026	$ 0.1076
Restricted Stock (time-vested)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	1,115,000		1,115,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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