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Loans (Details 5) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Risk category of loans |  |
Loans - Gross | $ 491,418 | $ 506,402
Agricultural real estate [Member] |  |
Risk category of loans |  |
Loans - Gross | 32,221 | 31,993
Agricultural real estate [Member] | 1-2 [Member] |  |
Risk category of loans |  |
Loans - Gross | 1,800 | 1,059
Agricultural real estate [Member] | 3 [Member] |  |
Risk category of loans |  |
Loans - Gross | 11,279 | 12,613
Agricultural real estate [Member] | 4 [Member] |  |
Risk category of loans |  |
Loans - Gross | 18,426 | 17,255
Agricultural real estate [Member] | 5 [Member] |  |
Risk category of loans |  |
Loans - Gross | 661 | 383
Agricultural real estate [Member] | 6 [Member] |  |
Risk category of loans |  |
Loans - Gross | 55 | 683
Agricultural real estate [Member] | 7 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Agricultural real estate [Member] | 8 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Agricultural [Member] |  |
Risk category of loans |  |
Loans - Gross | 56,581 | 52,598
Agricultural [Member] | 1-2 [Member] |  |
Risk category of loans |  |
Loans - Gross | 2,696 | 1,500
Agricultural [Member] | 3 [Member] |  |
Risk category of loans |  |
Loans - Gross | 20,389 | 25,019
Agricultural [Member] | 4 [Member] |  |
Risk category of loans |  |
Loans - Gross | 33,453 | 26,008
Agricultural [Member] | 5 [Member] |  |
Risk category of loans |  |
Loans - Gross | 43 | 57
Agricultural [Member] | 6 [Member] |  |
Risk category of loans |  |
Loans - Gross |  | 7
Agricultural [Member] | 7 [Member] |  |
Risk category of loans |  |
Loans - Gross |  | 7
Agricultural [Member] | 8 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Commercial real estate [Member] |  |
Risk category of loans |  |
Loans - Gross | 198,856 | 201,158
Commercial real estate [Member] | 1-2 [Member] |  |
Risk category of loans |  |
Loans - Gross | 4,018 | 3,545
Commercial real estate [Member] | 3 [Member] |  |
Risk category of loans |  |
Loans - Gross | 36,049 | 23,346
Commercial real estate [Member] | 4 [Member] |  |
Risk category of loans |  |
Loans - Gross | 143,015 | 162,788
Commercial real estate [Member] | 5 [Member] |  |
Risk category of loans |  |
Loans - Gross | 6,199 | 6,098
Commercial real estate [Member] | 6 [Member] |  |
Risk category of loans |  |
Loans - Gross | 8,975 | 4,677
Commercial real estate [Member] | 7 [Member] |  |
Risk category of loans |  |
Loans - Gross | 600 | 704
Commercial real estate [Member] | 8 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Commercial and industrial [Member] |  |
Risk category of loans |  |
Loans - Gross | 100,126 | 114,497
Commercial and industrial [Member] | 1-2 [Member] |  |
Risk category of loans |  |
Loans - Gross | 967 | 710
Commercial and industrial [Member] | 3 [Member] |  |
Risk category of loans |  |
Loans - Gross | 23,919 | 22,506
Commercial and industrial [Member] | 4 [Member] |  |
Risk category of loans |  |
Loans - Gross | 66,567 | 82,745
Commercial and industrial [Member] | 5 [Member] |  |
Risk category of loans |  |
Loans - Gross | 4,055 | 3,897
Commercial and industrial [Member] | 6 [Member] |  |
Risk category of loans |  |
Loans - Gross | 2,238 | 4,219
Commercial and industrial [Member] | 7 [Member] |  |
Risk category of loans |  |
Loans - Gross | 2,380 | 420
Commercial and industrial [Member] | 8 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Industrial Development Bonds [Member] |  |
Risk category of loans |  |
Loans - Gross | 1,427 | 1,196
Industrial Development Bonds [Member] | 1-2 [Member] |  |
Risk category of loans |  |
Loans - Gross | 97 | 188
Industrial Development Bonds [Member] | 3 [Member] |  |
Risk category of loans |  |
Loans - Gross | 942 | 622
Industrial Development Bonds [Member] | 4 [Member] |  |
Risk category of loans |  |
Loans - Gross | 388 | 386
Industrial Development Bonds [Member] | 5 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Industrial Development Bonds [Member] | 6 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Industrial Development Bonds [Member] | 7 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |
Industrial Development Bonds [Member] | 8 [Member] |  |
Risk category of loans |  |
Loans - Gross |  |

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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