CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Jan. 30, 2015	Aug. 01, 2014
Shareholders' Equity:
Preferred stock, shares authorized (in shares)	100,000,000us-gaap_PreferredStockSharesAuthorized	100,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common stock, shares authorized (in shares)	400,000,000us-gaap_CommonStockSharesAuthorized	400,000,000us-gaap_CommonStockSharesAuthorized
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	23,923,881us-gaap_CommonStockSharesIssued	23,821,227us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares)	23,923,881us-gaap_CommonStockSharesOutstanding	23,821,227us-gaap_CommonStockSharesOutstanding
Series A Junior Participating Preferred Stock [Member]
Shareholders' Equity:
Preferred stock, shares authorized (in shares)	300,000	300,000

Face amount or stated value per share of common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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