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Consolidated Balance Sheets (Parenthetical) (USD $)
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Dec. 31, 2012
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Dec. 31, 2011
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|---|---|---|
| Treasury Stock, Shares | 0 | 528,341 |
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Common Stock
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| Common Stock, Par value | 0.01 | 0.01 |
| Common Stock, Shares authorized | 20,000,000 | 20,000,000 |
| Common Stock, Shares issued | 10,865,212 | 9,680,825 |
| Common Stock, Shares outstanding | 10,865,212 | 9,502,279 |
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Convertible Class B Stock
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| Common Stock, Par value | 0.01 | 0.01 |
| Common Stock, Shares authorized | 5,000,000 | 5,000,000 |
| Common Stock, Shares issued | 3,595,732 | 5,079,268 |
| Common Stock, Shares outstanding | 3,595,732 | 4,729,473 |
| X | ||||||||||
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- Definition
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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