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Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Common dividends declared, per share | $ 0.48 | $ 0.43 | $ 0.40
Preferred dividends declared, per share | $ 60.00 | $ 60.00 | $ 37.15
Preferred stock converted to common stock, shares | 149,730 | 103,500 |
Issuance of preferred stock, shares |  |  | 18,921
Common stock options exercised, shares | 5,850 | 5,223 | 2,969
Restricted stock awards shares | 40,371 | 5,300 |
Contribution of treasury stock to 401(k) plan, shares |  |  | 60,632
Purchase of treasury shares | 1,739,601 | 67,438 | 81,510
Treasury stock shares acquired cost per share | $ 16.31 | $ 15.00 | $ 10.88
Acquisition of Peoples Bank of Virginia, shares |  | 2,157,005 |

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