Loans and Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	$ 7,930	$ 7,725
Charge Offs	(20)	(51)
Recoveries	9	5
Provision	300
Ending Balance	8,219	7,679
Allowance: Ending balance: individually evaluated for impairment	174		$ 329
Allowance: Ending balance: collectively evaluated for impairment	8,045		7,601
Loans: Ending balance: individually evaluated for impairment	3,105		3,412
Loans: Ending balance: collectively evaluated for impairment	703,601		692,716
Commercial & Industrial [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	823	1,204
Charge Offs
Recoveries		1
Provision	155	(207)
Ending Balance	978	998
Allowance: Ending balance: individually evaluated for impairment
Allowance: Ending balance: collectively evaluated for impairment	978		823
Loans: Ending balance: individually evaluated for impairment
Loans: Ending balance: collectively evaluated for impairment	107,078		101,554
Commercial RE & Construction [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	3,779	3,321
Charge Offs	(19)
Recoveries	3
Provision	90	(125)
Ending Balance	3,673	3,196
Allowance: Ending balance: individually evaluated for impairment			146
Allowance: Ending balance: collectively evaluated for impairment	3,673		3,633
Loans: Ending balance: individually evaluated for impairment	548		1,385
Loans: Ending balance: collectively evaluated for impairment	338,038		330,769
Agricultural & Farmland [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	505	347
Charge Offs
Recoveries		1
Provision	12	121
Ending Balance	517	469
Allowance: Ending balance: individually evaluated for impairment
Allowance: Ending balance: collectively evaluated for impairment	517		505
Loans: Ending balance: individually evaluated for impairment
Loans: Ending balance: collectively evaluated for impairment	50,266		51,947
Residential Real Estate [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	2,129	1,963
Charge Offs		(22)
Recoveries	1
Provision	229	72
Ending Balance	2,359	2,013
Allowance: Ending balance: individually evaluated for impairment	170		178
Allowance: Ending balance: collectively evaluated for impairment	2,189		1,951
Loans: Ending balance: individually evaluated for impairment	2,367		1,830
Loans: Ending balance: collectively evaluated for impairment	149,453		149,024
Consumer & Other [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	694	890
Charge Offs	(1)	(29)
Recoveries	5	3
Provision	(6)	139
Ending Balance	692	$ 1,003
Allowance: Ending balance: individually evaluated for impairment	4		5
Allowance: Ending balance: collectively evaluated for impairment	688		689
Loans: Ending balance: individually evaluated for impairment	190		197
Loans: Ending balance: collectively evaluated for impairment	$ 58,766		$ 59,422

A valuation allowance for financing receivables that are expected to be uncollectible.

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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of direct write-downs of financing receivables charged against the allowance.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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