Loans and Allowance for Loan Losses (Details 9) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	$ 15,523	$ 14,855	$ 13,629
Provision for loan losses	1,900	2,000	2,300
Total loan charge-offs	(2,146)	(1,638)	(1,648)
Loan recoveries	485	306	574
Net loan charge-offs	(1,661)	(1,332)	(1,074)
Balance, end of period	15,762	15,523	14,855
Commercial [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	9,937	10,039
Total loan charge-offs	(1,127)	(1,227)	(1,178)
Loan recoveries	361	205	558
Balance, end of period	10,768	9,937	10,039
Commercial [Member] \| Owner occupied RE [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs			(5)
Loan recoveries
Commercial [Member] \| Non-owner occupied RE [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs	(432)	(589)	(100)
Loan recoveries	132	119	155
Commercial [Member] \| Business [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs	(695)	(638)	(1,031)
Loan recoveries	229	86	403
Commercial [Member] \| Construction [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs			(42)
Loan recoveries
Consumer [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	5,586	4,816
Total loan charge-offs	(1,019)	(411)	(470)
Loan recoveries	124	101	16
Balance, end of period	4,994	5,586	4,816
Consumer [Member] \| Other [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs	(53)	(11)	(210)
Loan recoveries	4	2	5
Consumer [Member] \| Real estate [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs	(749)		(194)
Loan recoveries	5	86	10
Consumer [Member] \| Home equity [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs	(217)	(400)	(66)
Loan recoveries	115	13	1
Consumer [Member] \| Construction [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Total loan charge-offs
Loan recoveries

Allowance for loan and lease losses write offs net of recoveries.

No definition available.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

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- Definition

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

+ References

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- Definition

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

+ References

No definition available.

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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://fasb.org/us-gaap/role/ref/legacyRef
-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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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- Definition

Amount of increase in valuation and qualifying accounts and reserves from recovery of amount previously written off or reestablishment of reserve previously utilized.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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