Loans and Allowance for Loan Losses (Details 5) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017 USD ($) Number	Dec. 31, 2016 USD ($) Number
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 2,660	$ 2,746
Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	18	17
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 901	$ 920
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 3,856	$ 3,983
Municipal [Member] \| Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	2	2
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 0	$ 0
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	221	258
Commercial [Member]
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 316	$ 342
Commercial [Member] \| Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	1	2
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 0	$ 0
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 3	$ 13
Construction Loans [Member] \| Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	4	4
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 583	$ 588
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 1,256	$ 1,338
Agriculture [Member] \| Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	5	4
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 268	$ 268
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	44	44
Residential Real Estate [Member]
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 484	$ 595
Residential Real Estate [Member] \| Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	2	2
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 0	$ 0
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	181	185
Commercial Real Estate [Member]
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 286	$ 300
Commercial Real Estate [Member] \| Troubled Debt Restructurings [Member]
Troubled debt restructurings, Number of loans \| Number	4	3
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 50	$ 64
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 2,151	$ 2,145

The amount of the outstanding recorded investment related to accruing balance of financing receivables that have been modified by troubled debt restructurings.

No definition available.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ 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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