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Consolidated Balance Sheets (Parenthetical) (USD $) | Jun. 30, 2012 | Dec. 31, 2011
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Consolidated Balance Sheets [Abstract] |  |
Preferred stock, par value | $ 10 | $ 10
Preferred stock, shares authorized | 500,000 | 500,000
Preferred stock, shares issued | 0 | 0
Common stock, par value | $ 2.50 | $ 2.50
Common stock, shares authorized | 10,000,000 | 10,000,000
Common stock, shares issued | 3,317,150 | 3,286,992

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