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Allowance for Loan Losses Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Financing Receivable, Modifications [Line Items]
Beginning Balance	$ 4,806	$ 7,034
Added	193	181
Charged Off	(32)	(52)
Payments	(193)	(244)
Ending Balance	4,774	6,919
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	145	2,709
Added	0	0
Charged Off	0	0
Payments	(9)	(37)
Ending Balance	136	2,672
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	4,043	3,611
Added	122	107
Charged Off	(16)	(16)
Payments	(130)	(134)
Ending Balance	4,019	3,568
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	618	714
Added	71	74
Charged Off	(16)	(36)
Payments	(54)	(73)
Ending Balance	$ 619	$ 679

X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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X

- 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.

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X

- 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

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- Definition

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

+ 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

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