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Stock Award Plan (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended		12 Months Ended
	Jan. 31, 2013	Oct. 29, 2011	Jul. 31, 2012
Stock Award Plan [Abstract]
Shares awarded (in shares)		62,099
Shares awarded, value		$ 0.9
Share-based award, vesting period		3 years
Excess tax benefits accumulated in Capital in Excess of Par Value	0.3		0.3
Unrecognized compensation expense	$ 0.5		$ 0.8

Tax benefit associated with any equity-based compensation plan other than an employee stock ownership plan (ESOP). The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Includes any resulting tax benefit that exceeds the previously recognized deferred tax asset (excess tax benefits).

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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