Loans (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
30-59 Days Past Due	$ 715	$ 907
60-89 Days Past Due	1	859
Greater Than 90 Days	4,092	1,789
Total Past Due	4,808	3,555
Current	496,594	502,660
Total Financing Receivables	501,402	506,215
Recorded Investment greater than 90 Days and Accruing	1
Residential [Member]
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
30-59 Days Past Due	575	799
60-89 Days Past Due		248
Greater Than 90 Days	648	441
Total Past Due	1,223	1,488
Current	79,064	82,989
Total Financing Receivables	80,287	84,477
Recorded Investment greater than 90 Days and Accruing
Ag RE [Member]
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
Current	40,143	31,993
Total Financing Receivables	40,143	31,993
Recorded Investment greater than 90 Days and Accruing
Ag [Member]
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
30-59 Days Past Due	11	7
Total Past Due	11	7
Current	57,759	52,591
Total Financing Receivables	57,770	52,598
Recorded Investment greater than 90 Days and Accruing
Commercial Real Estate [Member]
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
60-89 Days Past Due		611
Greater Than 90 Days	877	927
Total Past Due	877	1,538
Current	199,122	196,728
Total Financing Receivables	199,999	198,266
Recorded Investment greater than 90 Days and Accruing
Commercial and Industrial [Member]
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
30-59 Days Past Due	78	77
Greater Than 90 Days	2,567	421
Total Past Due	2,645	498
Current	100,278	115,195
Total Financing Receivables	102,923	115,693
Recorded Investment greater than 90 Days and Accruing
Consumer [Member]
Contractual aging of the recorded investment in past due loans by portfolio segment of loans
30-59 Days Past Due	51	24
60-89 Days Past Due	1
Total Past Due	52	24
Current	20,228	23,164
Total Financing Receivables	20,280	23,188
Recorded Investment greater than 90 Days and Accruing	$ 1

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Financing receivables current and past due.

+ References

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- Definition

Financing receivables that are less than 60 days past due but more than 29 days past due.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524

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- Definition

Financing receivables that are less than 90 days past due but more than 59 days past due.

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524

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Financing receivables that are current.

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Financing receivables that are equal to or greater than 90 days past due.

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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