Loans and Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded	$ 1,046	$ 961
Unpaid Principal Balance With no related allowance recorded	1,104	972
Average Recorded Investment With no related allowance recorded	1,018	1,726
Interest Income Recognized With no related allowance recorded	1	5
Recorded Investment With an allowance recorded	4,910	5,924
Unpaid Principal Balance With an allowance recorded	5,461	7,000
Related Allowance	801	1,114
Average Recorded Investment With an allowance recorded	5,418	6,595
Interest Income Recognized With an allowance recorded	41	57
Recorded Investment	5,956	6,885
Unpaid Principal Balance	6,565	7,972
Average Recorded Investment	6,436	8,321
Interest Income Recognized	42	67
Agricultural [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Average Recorded Investment With no related allowance recorded		226
Recorded Investment With an allowance recorded	210
Unpaid Principal Balance With an allowance recorded	210
Related Allowance	1
Average Recorded Investment With an allowance recorded	105	182
Interest Income Recognized With an allowance recorded	(6)	1
Recorded Investment	210
Unpaid Principal Balance	210
Average Recorded Investment	105	408
Interest Income Recognized	(6)	1
Commercial and Industrial [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded	5	38
Unpaid Principal Balance With no related allowance recorded	8	43
Average Recorded Investment With no related allowance recorded	21	145
Average Recorded Investment With an allowance recorded		465
Interest Income Recognized With an allowance recorded		1
Recorded Investment	5	38
Unpaid Principal Balance	8	43
Average Recorded Investment	21	610
Interest Income Recognized		1
Consumer [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded		8
Unpaid Principal Balance With no related allowance recorded		8
Average Recorded Investment With no related allowance recorded	4	1
Recorded Investment With an allowance recorded	26	28
Unpaid Principal Balance With an allowance recorded	26	28
Related Allowance	2	4
Average Recorded Investment With an allowance recorded	27	33
Interest Income Recognized With an allowance recorded	1	1
Recorded Investment	26	36
Unpaid Principal Balance	26	36
Average Recorded Investment	31	34
Interest Income Recognized	1	1
Commercial Real Estate [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded	819	413
Unpaid Principal Balance With no related allowance recorded	874	419
Average Recorded Investment With no related allowance recorded	631	607
Interest Income Recognized With no related allowance recorded	1
Recorded Investment With an allowance recorded	2,212	3,440
Unpaid Principal Balance With an allowance recorded	2,740	4,498
Related Allowance	414	745
Average Recorded Investment With an allowance recorded	2,826	3,792
Interest Income Recognized With an allowance recorded	24	31
Recorded Investment	3,031	3,853
Unpaid Principal Balance	3,614	4,917
Average Recorded Investment	3,457	4,399
Interest Income Recognized	25	36
Residential Real Estate [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded	222	502
Unpaid Principal Balance With no related allowance recorded	222	502
Average Recorded Investment With no related allowance recorded	362	747
Interest Income Recognized With no related allowance recorded		5
Recorded Investment With an allowance recorded	2,462	2,456
Unpaid Principal Balance With an allowance recorded	2,485	2,474
Related Allowance	384	365
Average Recorded Investment With an allowance recorded	2,460	2,123
Interest Income Recognized With an allowance recorded	22	23
Recorded Investment	2,684	2,958
Unpaid Principal Balance	2,707	2,976
Average Recorded Investment	2,822	2,870
Interest Income Recognized	$ 22	$ 28

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

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