Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	37,500,000us-gaap_CommonStockSharesAuthorized	37,500,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	26,710,569us-gaap_CommonStockSharesIssued	26,480,837us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	26,710,569us-gaap_CommonStockSharesOutstanding	26,480,837us-gaap_CommonStockSharesOutstanding

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

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

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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