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Loans (Details 6) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	$ 6,489	$ 9,058
Loans Past Due 90 Days or More Still Accruing	1,681	1,387
Originated Loans
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	4,209	7,028
Loans Past Due 90 Days or More Still Accruing	932	845
Originated Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	958	3,240
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Commercial real estate, Non-owner occupied | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	343	345
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	58	73
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Commercial, Commercial and industrial | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	400	541
Loans Past Due 90 Days or More Still Accruing	0	73
Originated Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	1,929	2,406
Loans Past Due 90 Days or More Still Accruing	295	336
Originated Loans | Commercial, Agricultural | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	12	0
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	202	127
Loans Past Due 90 Days or More Still Accruing	118	112
Originated Loans | Consumer, Indirect | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	298	266
Loans Past Due 90 Days or More Still Accruing	438	297
Originated Loans | Consumer, Direct | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	9	30
Loans Past Due 90 Days or More Still Accruing	65	3
Originated Loans | Consumer, Other | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	0	0
Loans Past Due 90 Days or More Still Accruing	16	24
Acquired Loans
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	2,280	2,030
Loans Past Due 90 Days or More Still Accruing	749	542
Acquired Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	85	126
Loans Past Due 90 Days or More Still Accruing	0	18
Acquired Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	380	0
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Commercial, Commercial and industrial | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	961	1,068
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	386	458
Loans Past Due 90 Days or More Still Accruing	545	467
Acquired Loans | Commercial, Agricultural | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	236	0
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	119	125
Loans Past Due 90 Days or More Still Accruing	109	7
Acquired Loans | Consumer, Direct | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	89	161
Loans Past Due 90 Days or More Still Accruing	95	50
Acquired Loans | Commercial real estate, Other | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	24	92
Loans Past Due 90 Days or More Still Accruing	$ 0	$ 0

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

Reference 2: 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=66008989&loc=d3e5111-111524

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

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-Publisher FASB
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-Topic 310
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