Loans And Related Allowances For Loan Losses (Average of Impaired Loans and Related Interest Income by Loan Portfolio Class) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Impaired [Line Items]
Average Investment	$ 5,631	$ 9,702
Interest income recognized on an accrual basis	42	64
Interest income recognized on a cash basis	5	5
Commercial real estate- non owner-occupied [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	106	2,406
Interest income recognized on an accrual basis	3	3
Commercial real estate- all other CRE [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	2,235	3,182
Interest income recognized on an accrual basis	23	35
Acquisition and development- 1-4 family residential construction [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	235	263
Interest income recognized on an accrual basis	4	3
Acquisition and development- All other A&D [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	386	596
Interest income recognized on an accrual basis		3
Commercial and industrial [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	45
Residential mortgage- term [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	2,227	2,784
Interest income recognized on an accrual basis	12	20
Interest income recognized on a cash basis	5	5
Residential mortgage- home equity [Member]
Financing Receivable, Impaired [Line Items]
Average Investment	$ 397	446
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Average Investment		$ 25

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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