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Loans (Details 1) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012
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Commercial real estate [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | $ 24,132
Maturity schedule by major category of loans, After One Year Within Five Years | 105,178
Maturity schedule by major category of loans, After Five Years | 69,546
Agricultural real estate [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | 3,207
Maturity schedule by major category of loans, After One Year Within Five Years | 9,586
Maturity schedule by major category of loans, After Five Years | 19,428
Consumer real estate [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | 6,954
Maturity schedule by major category of loans, After One Year Within Five Years | 14,650
Maturity schedule by major category of loans, After Five Years | 59,437
Commercial/Industrial [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | 64,640
Maturity schedule by major category of loans, After One Year Within Five Years | 32,475
Maturity schedule by major category of loans, After Five Years | 3,011
Agriculture [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | 36,501
Maturity schedule by major category of loans, After One Year Within Five Years | 17,961
Maturity schedule by major category of loans, After Five Years | 2,119
Consumer [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | 5,062
Maturity schedule by major category of loans, After One Year Within Five Years | 13,891
Maturity schedule by major category of loans, After Five Years | 2,099
Industrial Development Bonds [Member] |
Maturity schedule by major category of loans |
Maturity schedule by major category of loans, Within One Year | 442
Maturity schedule by major category of loans, After One Year Within Five Years | 93
Maturity schedule by major category of loans, After Five Years | $ 892

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