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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) (USD $)
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Sep. 30, 2012
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Dec. 31, 2011
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| Stockholders' equity: | |||||
| Preferred stock, par value (in dollars per share) | $ 0.05 | $ 0.05 | [1] | ||
| Preferred stock, shares authorized (in shares) | 1,000,000 | 1,000,000 | [1] | ||
| Common stock, par value (in dollars per share) | $ 0.0075 | $ 0.0075 | [1] | ||
| Common stock, shares authorized (in shares) | 138,666,666 | 138,666,666 | [1] | ||
| Common stock, shares outstanding (in shares) | 68,222,598 | 35,107,007 | [1] | ||
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| 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
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
Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); 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 nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) 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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- Details
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