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Loans (Details 3) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due | $ 1,261 | $ 908
60-89 Days Past Due | 219 | 859
Greater Than 90 Days Past Due | 3,995 | 1,788
Total Past Due | 5,475 | 3,555
Current | 485,829 | 502,660
Total Financing Receivables | 491,304 | 506,215
Recorded Investment >90 Days and Accruing |  |
Consumer real estate [Member] |  |
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due | 887 | 753
60-89 Days Past Due | 189 | 248
Greater Than 90 Days Past Due | 776 | 441
Total Past Due | 1,852 | 1,442
Current | 79,189 | 80,143
Total Financing Receivables | 81,041 | 81,585
Recorded Investment >90 Days and Accruing |  |
Agricultural real estate [Member] |  |
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due | 30 |
60-89 Days Past Due |  |
Greater Than 90 Days Past Due |  |
Total Past Due | 30 |
Current | 32,191 | 31,993
Total Financing Receivables | 32,221 | 31,993
Recorded Investment >90 Days and Accruing |  |
Agricultural [Member] |  |
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due |  | 7
60-89 Days Past Due | 21 |
Greater Than 90 Days Past Due |  |
Total Past Due | 21 | 7
Current | 56,560 | 52,591
Total Financing Receivables | 56,581 | 52,598
Recorded Investment >90 Days and Accruing |  |
Commercial real estate [Member] |  |
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due | 179 | 46
60-89 Days Past Due |  | 611
Greater Than 90 Days Past Due | 894 | 927
Total Past Due | 1,073 | 1,584
Current | 197,783 | 199,574
Total Financing Receivables | 198,856 | 201,158
Recorded Investment >90 Days and Accruing |  |
Commercial and industrial [Member] |  |
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due | 130 | 78
60-89 Days Past Due | 3 |
Greater Than 90 Days Past Due | 2,325 | 420
Total Past Due | 2,458 | 498
Current | 99,095 | 115,195
Total Financing Receivables | 101,553 | 115,693
Recorded Investment >90 Days and Accruing |  |
Consumer [Member] |  |
Contractual aging of the recorded investment in past due loans by class or loans |  |
30-59 Days Past Due | 35 | 24
60-89 Days Past Due | 6 |
Greater Than 90 Days Past Due |  |
Total Past Due | 41 | 24
Current | 21,011 | 23,164
Total Financing Receivables | 21,052 | 23,188
Recorded Investment >90 Days and Accruing |  |

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