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Loans (Details 2) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
--- | --- | --- | --- | ---
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment | $ 753 | $ 1,265 |  |
Allowance for loan losses, Collectively evaluated for impairment | 12,208 | 11,122 |  |
Allowance for loan losses, Modified in a troubled debt restructuring | 1,099 | 228 |  |
Total ending allowance balance | 14,060 | 12,615 | 10,820 | 9,795
Loans: |  |  |  |
Loans individually evaluated for impairment | 13,899 | 14,696 |  |
Loans collectively evaluated for impairment | 905,705 | 830,385 |  |
Loans modified in a troubled debt restructuring | 11,621 | 7,688 |  |
Total ending loans balance | 931,225 | 852,769 |  |
Commercial, Industrial, and Agricultural [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment | 541 | 329 |  |
Allowance for loan losses, Collectively evaluated for impairment | 4,399 | 4,182 |  |
Allowance for loan losses, Modified in a troubled debt restructuring |  |  |  |
Total ending allowance balance | 4,940 | 4,511 | 3,517 |
Loans: |  |  |  |
Loans individually evaluated for impairment | 2,623 | 6,115 |  |
Loans collectively evaluated for impairment | 253,048 | 247,209 |  |
Loans modified in a troubled debt restructuring | 1,420 |  |  |
Total ending loans balance | 257,091 | 253,324 |  |
Commercial Mortgages [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment | 131 | 917 |  |
Allowance for loan losses, Collectively evaluated for impairment | 3,467 | 3,325 |  |
Allowance for loan losses, Modified in a troubled debt restructuring | 1,099 | 228 |  |
Total ending allowance balance | 4,697 | 4,470 | 3,511 |
Loans: |  |  |  |
Loans individually evaluated for impairment | 10,683 | 8,457 |  |
Loans collectively evaluated for impairment | 240,907 | 226,366 |  |
Loans modified in a troubled debt restructuring | 10,201 | 7,688 |  |
Total ending loans balance | 261,791 | 242,511 |  |
Residential Real Estate [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment | 81 | 19 |  |
Allowance for loan losses, Collectively evaluated for impairment | 2,385 | 1,972 |  |
Allowance for loan losses, Modified in a troubled debt restructuring |  |  |  |
Total ending allowance balance | 2,466 | 1,991 | 1,916 |
Loans: |  |  |  |
Loans individually evaluated for impairment | 593 | 124 |  |
Loans collectively evaluated for impairment | 347,311 | 298,504 |  |
Loans modified in a troubled debt restructuring |  |  |  |
Total ending loans balance | 347,904 | 298,628 |  |
Consumer [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment |  |  |  |
Allowance for loan losses, Collectively evaluated for impairment | 1,699 | 1,404 |  |
Allowance for loan losses, Modified in a troubled debt restructuring |  |  |  |
Total ending allowance balance | 1,699 | 1,404 | 1,561 |
Loans: |  |  |  |
Loans individually evaluated for impairment |  |  |  |
Loans collectively evaluated for impairment | 58,668 | 53,471 |  |
Loans modified in a troubled debt restructuring |  |  |  |
Total ending loans balance | 58,668 | 53,471 |  |
Credit Cards [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment |  |  |  |
Allowance for loan losses, Collectively evaluated for impairment | 83 | 71 |  |
Allowance for loan losses, Modified in a troubled debt restructuring |  |  |  |
Total ending allowance balance | 83 | 71 | 96 |
Loans: |  |  |  |
Loans individually evaluated for impairment |  |  |  |
Loans collectively evaluated for impairment | 4,800 | 4,412 |  |
Loans modified in a troubled debt restructuring |  |  |  |
Total ending loans balance | 4,800 | 4,412 |  |
Overdrafts [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Allowance for loan losses, Individually evaluated for impairment |  |  |  |
Allowance for loan losses, Collectively evaluated for impairment | 175 | 168 |  |
Allowance for loan losses, Modified in a troubled debt restructuring |  |  |  |
Total ending allowance balance | 175 | 168 | 219 |
Loans: |  |  |  |
Loans individually evaluated for impairment |  |  |  |
Loans collectively evaluated for impairment | 971 | 423 |  |
Loans modified in a troubled debt restructuring |  |  |  |
Total ending loans balance | $ 971 | $ 423 |  |

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- Definition Total of loans held-for-sale and held-in-portfolio net of unearned income, allowance for loan and lease losses, if any, unamortized loan origination and other fees and costs, and purchased premiums or discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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