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Loans and Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded - 12/31	$ 961
Recorded Investment With no related allowance recorded - 06/30	892
Unpaid Principal Balance With no related allowance recorded - 12/31	972
Unpaid Principal Balance With no related allowance recorded - 06/30	929
Average Recorded Investment With no related allowance recorded	977	$ 1,291
Interest Income Recognized With no related allowance recorded	5	11
Recorded Investment With an allowance recorded - 12/31	5,924
Recorded Investment With an allowance recorded - 6/30	3,857
Unpaid Principal Balance With an allowance recorded - 12/31	7,000
Unpaid Principal Balance With an allowance recorded - 6/30	4,411
Related Allowance - 12/31	1,114
Related Allowance - 6/30	666
Average Recorded Investment With an allowance recorded	4,897	6,673
Interest Income Recognized With an allowance recorded	75	103
Recorded Investment - 12/31	6,885
Recorded Investment - 06/30	4,749
Unpaid Principal Balance - 12/31	7,972
Unpaid Principal Balance - 06/30	5,340
Average Recorded Investment	5,874	7,964
Interest Income Recognized	80	114
Agricultural [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Average Recorded Investment With no related allowance recorded		150
Average Recorded Investment With an allowance recorded	70	196
Interest Income Recognized With an allowance recorded	(6)
Average Recorded Investment	70	346
Interest Income Recognized	(6)
Commercial and Industrial [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded - 12/31	38
Recorded Investment With no related allowance recorded - 06/30	4
Unpaid Principal Balance With no related allowance recorded - 12/31	43
Unpaid Principal Balance With no related allowance recorded - 06/30	7
Average Recorded Investment With no related allowance recorded	16	119
Average Recorded Investment With an allowance recorded		437
Interest Income Recognized With an allowance recorded		4
Recorded Investment - 12/31	38
Recorded Investment - 06/30	4
Unpaid Principal Balance - 12/31	43
Unpaid Principal Balance - 06/30	7
Average Recorded Investment	16	556
Interest Income Recognized		4
Consumer [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded - 12/31	8
Unpaid Principal Balance With no related allowance recorded - 12/31	8
Average Recorded Investment With no related allowance recorded	3	1
Recorded Investment With an allowance recorded - 12/31	28
Recorded Investment With an allowance recorded - 6/30	25
Unpaid Principal Balance With an allowance recorded - 12/31	28
Unpaid Principal Balance With an allowance recorded - 6/30	25
Related Allowance - 12/31	4
Related Allowance - 6/30	1
Average Recorded Investment With an allowance recorded	26	33
Interest Income Recognized With an allowance recorded	1	1
Recorded Investment - 12/31	36
Recorded Investment - 06/30	25
Unpaid Principal Balance - 12/31	36
Unpaid Principal Balance - 06/30	25
Average Recorded Investment	29	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 - 12/31	413
Recorded Investment With no related allowance recorded - 06/30	713
Unpaid Principal Balance With no related allowance recorded - 12/31	419
Unpaid Principal Balance With no related allowance recorded - 06/30	743
Average Recorded Investment With no related allowance recorded	658	445
Interest Income Recognized With no related allowance recorded	5	5
Recorded Investment With an allowance recorded - 12/31	3,440
Recorded Investment With an allowance recorded - 6/30	1,573
Unpaid Principal Balance With an allowance recorded - 12/31	4,498
Unpaid Principal Balance With an allowance recorded - 6/30	2,105
Related Allowance - 12/31	745
Related Allowance - 6/30	333
Average Recorded Investment With an allowance recorded	2,408	3,801
Interest Income Recognized With an allowance recorded	39	53
Recorded Investment - 12/31	3,853
Recorded Investment - 06/30	2,286
Unpaid Principal Balance - 12/31	4,917
Unpaid Principal Balance - 06/30	2,848
Average Recorded Investment	3,066	4,246
Interest Income Recognized	44	58
Residential Real Estate [Member]
Impaired and Restructured Loans with or with no related allowance recorded
Recorded Investment With no related allowance recorded - 12/31	502
Recorded Investment With no related allowance recorded - 06/30	175
Unpaid Principal Balance With no related allowance recorded - 12/31	502
Unpaid Principal Balance With no related allowance recorded - 06/30	179
Average Recorded Investment With no related allowance recorded	300	576
Interest Income Recognized With no related allowance recorded		6
Recorded Investment With an allowance recorded - 12/31	2,456
Recorded Investment With an allowance recorded - 6/30	2,259
Unpaid Principal Balance With an allowance recorded - 12/31	2,474
Unpaid Principal Balance With an allowance recorded - 6/30	2,281
Related Allowance - 12/31	365
Related Allowance - 6/30	332
Average Recorded Investment With an allowance recorded	2,393	2,206
Interest Income Recognized With an allowance recorded	41	45
Recorded Investment - 12/31	2,958
Recorded Investment - 06/30	2,434
Unpaid Principal Balance - 12/31	2,976
Unpaid Principal Balance - 06/30	2,460
Average Recorded Investment	2,693	2,782
Interest Income Recognized	$ 41	$ 51

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