Allowance for Loan Losses Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Financing Receivable, Modifications [Line Items]
Beginning Balance	$ 6,819	$ 7,984	$ 7,034	$ 8,565
Added	632	42	988	478
Charged Off	(7)	(172)	(99)	(283)
Payments	(2,597)	(430)	(3,076)	(1,336)
Ending Balance	4,847	7,424	4,847	7,424
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	2,577	3,061	2,709	3,386
Added	0	0	0	0
Charged Off	0	0	0	0
Payments	(2,374)	(153)	(2,506)	(478)
Ending Balance	203	2,908	203	2,908
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	3,607	4,198	3,611	4,447
Added	538	0	751	227
Charged Off	0	(155)	(16)	(195)
Payments	(165)	(222)	(366)	(658)
Ending Balance	3,980	3,821	3,980	3,821
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	635	725	714	732
Added	94	42	237	251
Charged Off	(7)	(17)	(83)	(88)
Payments	(58)	(55)	(204)	(200)
Ending Balance	$ 664	$ 695	$ 664	$ 695

Financing Receivable, Impaired, Troubled Debt Restructuring, Additions During Period

No definition available.

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- Definition

Financing Receivable, Impaired, Troubled Debt Restructuring, Payments During Period

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

+ Details

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

+ Details

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