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Loans and Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	$ 0	$ 0
Loans, Total past due loans accruing	1,246	1,402
Loans, Non-accrual loans	1,792	2,168
Loans, Total past due and non-accrual loans	3,038	3,570
Loans, Total loans not past due	$ 432,537	$ 422,246
Percent of gross loans, 30-59 days delinquent and accruing	0.24%	0.15%
Percent of gross loans, 60-89 days delinquent and accruing	0.05%	0.18%
Percent of gross loans, 90 days or more delinquent and accruing	0.00%	0.00%
Percentage of gross loans, Total past due loans accruing	0.29%	0.33%
Percent of gross loans, Non-accrual loans	0.41%	0.51%
Percentage of Total past due and non-accrual loans	0.70%	0.84%
Percentage of Total loans not past due	99.30%	99.16%
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 1,026	$ 643
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	220	759
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	383	782
Loans, Non-accrual loans	122	749
Loans, Total past due and non-accrual loans	505	1,531
Loans, Total loans not past due	133,209	130,399
Residential Real Estate [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	263	70
Residential Real Estate [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	120	712
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	4	4
Loans, Non-accrual loans	602	614
Loans, Total past due and non-accrual loans	606	618
Loans, Total loans not past due	15,478	14,425
Construction Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	4	4
Construction Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	422	240
Loans, Non-accrual loans	237	47
Loans, Total past due and non-accrual loans	659	287
Loans, Total loans not past due	115,736	118,696
Commercial Real Estate [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	332	240
Commercial Real Estate [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	90	0
Commercial Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	256	130
Loans, Non-accrual loans	90	583
Loans, Total past due and non-accrual loans	346	713
Loans, Total loans not past due	61,234	60,587
Commercial Loan [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	256	90
Commercial Loan [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	40
Agriculture Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	83	179
Loans, Non-accrual loans	631	139
Loans, Total past due and non-accrual loans	714	318
Loans, Total loans not past due	79,918	70,712
Agriculture Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	83	174
Agriculture Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	5
Municipal Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	0	0
Loans, Non-accrual loans	0	0
Loans, Total past due and non-accrual loans	0	0
Loans, Total loans not past due	7,132	7,635
Municipal Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Municipal Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90 days or more delinquent and accruing	0	0
Loans, Total past due loans accruing	98	67
Loans, Non-accrual loans	110	36
Loans, Total past due and non-accrual loans	208	103
Loans, Total loans not past due	19,830	19,792
Consumer Loan [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	88	65
Consumer Loan [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 10	$ 2

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=65880944

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=65880944

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-URI http://asc.fasb.org/extlink&oid=65880944

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