Loans and Allowance for Loan Losses (Allowance for Loan Losses by Commercial and Consumer Portfolio Segments) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	$ 16,642	$ 15,762
Provision for loan losses	6,000	300
Loan charge-offs	(266)	(41)
Loan recoveries	86	30
Net loan charge-offs	(180)	(11)
Balance, end of period	$ 22,462	$ 16,051
Net charge-offs to average loans (annualized)	0.04%	0.00%
Allowance for loan losses to gross loans	1.11%	0.93%
Allowance for loan losses to nonperforming loans	226.14%	265.35%
Commercial Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	$ 11,372
Balance, end of period	15,208
Commercial Loan [Member] \| Owner Occupied Re [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	2,835	$ 2,726
Provision for loan losses	1,170	57
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	4,005	2,783
Commercial Loan [Member] \| Non Owner Occupied Re [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	4,304	3,811
Provision for loan losses	1,711	74
Loan charge-offs	(221)
Loan recoveries		1
Net loan charge-offs	(221)	1
Balance, end of period	5,794	3,886
Commercial Loan [Member] \| Business Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	3,692	3,616
Provision for loan losses	1,006	171
Loan charge-offs
Loan recoveries	16	9
Net loan charge-offs	16	9
Balance, end of period	4,714	3,796
Commercial Loan [Member] \| Construction Loans [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	541	615
Provision for loan losses	153	(43)
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	694	572
Consumer Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	5,270
Balance, end of period	7,254
Consumer Loan [Member] \| Other Consumer [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	277	290
Provision for loan losses	106	29
Loan charge-offs	(45)	(41)
Loan recoveries		3
Net loan charge-offs	(45)	(38)
Balance, end of period	338	281
Consumer Loan [Member] \| Construction Loans [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	268	275
Provision for loan losses	147	7
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	415	282
Consumer Loan [Member] \| Real Estate Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	3,278	3,081
Provision for loan losses	1,326	(56)
Loan charge-offs
Loan recoveries	2	16
Net loan charge-offs	2	16
Balance, end of period	4,606	3,041
Consumer Loan [Member] \| Home Equity Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	1,447	1,348
Provision for loan losses	381	61
Loan charge-offs
Loan recoveries	68	1
Net loan charge-offs	68	1
Balance, end of period	$ 1,896	$ 1,410

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

No definition available.

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- Definition

Allowance for loan losses as a percentage of gross loans.

+ References

No definition available.

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- Definition

Allowance for credit losses as a percentage of nonperforming loans.

+ References

No definition available.

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- Definition

Net loan charge offs annualized as a percentage of average total loans.

+ References

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

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ 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
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(2))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447

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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

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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(Column C)(2))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690

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