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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	May 02, 2015	Jan. 31, 2015
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.01us-gaap_CommonStockParOrStatedValuePerShare	$ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized	100,000,000us-gaap_CommonStockSharesAuthorized	100,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	36,772,823us-gaap_CommonStockSharesIssued	36,748,245us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	36,772,823us-gaap_CommonStockSharesOutstanding	36,748,245us-gaap_CommonStockSharesOutstanding

X

- Definition

Face amount or stated value per share of common stock.

+ References

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X

- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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