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Segment Results (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Dec. 31, 2011
Contribution of segments to the consolidated results of operations |  |  |  |  |
Total revenue | $ 11,791 | $ 11,642 | $ 35,177 | $ 34,253 |
Net income | 1,307 | 1,566 | 4,304 | 4,767 |
Total assets | 1,002,281 | 973,439 | 1,002,281 | 973,439 | 979,076
Retail Banking [Member] |  |  |  |  |
Contribution of segments to the consolidated results of operations |  |  |  |  |
Total revenue | 6,883 | 6,710 | 20,283 | 19,447 |
Net income | 837 | 774 | 2,464 | 1,366 |
Total assets | 338,267 | 330,441 | 338,267 | 330,441 |
Commercial Banking [Member] |  |  |  |  |
Contribution of segments to the consolidated results of operations |  |  |  |  |
Total revenue | 3,900 | 3,665 | 11,144 | 10,654 |
Net income | 1,291 | 1,443 | 3,838 | 4,993 |
Total assets | 478,467 | 442,925 | 478,467 | 442,925 |
Trust [Member] |  |  |  |  |
Contribution of segments to the consolidated results of operations |  |  |  |  |
Total revenue | 1,865 | 1,817 | 5,817 | 5,541 |
Net income | 210 | 179 | 708 | 624 |
Total assets | 4,228 | 4,289 | 4,228 | 4,289 |
Investment/ Parent [Member] |  |  |  |  |
Contribution of segments to the consolidated results of operations |  |  |  |  |
Total revenue | (857) | (550) | (2,067) | (1,389) |
Net income | (1,031) | (830) | (2,706) | (2,216) |
Total assets | $ 181,319 | $ 195,784 | $ 181,319 | $ 195,784 |

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