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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) | Sep. 30, 2013 | Dec. 31, 2012
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Statement Of Financial Position [Abstract] |  |
Preferred stock, par value | $ 0 | $ 0
Preferred stock, shares authorized | 1,000,000 | 1,000,000
Preferred stock, shares issued | 0 | 0
Common stock, par value | $ 0 | $ 0
Common stock, shares authorized | 20,000,000 | 20,000,000
Common stock, shares outstanding | 8,707,534 | 8,706,251

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