Loans And Related Allowances For Loan Losses (Narrative) (Details)	12 Months Ended
Dec. 31, 2022 USD ($) region loan	Dec. 31, 2021 USD ($) loan
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	$ 3,495,000	$ 2,462,000
Financing receivable, modifications, subsequent default, recorded investment	$ 0	0
Pass [Member]
Financing Receivable, Modifications [Line Items]
Number of geographic regions utilized \| region	7
Number of geographic regions that represent lending footprint \| region	6
Partial Charge Off [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	$ 100,000	$ 500,000
Troubled Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Financing receivable, modifications, number of contracts \| loan	12	12
Financing receivable, modifications, recorded investment	$ 3,000,000.0	$ 3,300,000
Unused commitments to extend credit	0	0
Commercial real estate- non owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	87,000
Commercial real estate- all other CRE [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	58,000	81,000
Acquisition and development- All other A&D [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	$ 146,000	390,000
Acquisition and development- 1-4 family residential construction [Member]
Financing Receivable, Modifications [Line Items]
Loans secured by real estate properties in process of foreclosure		$ 200,000
Percentage of loan portfolio accruing loan past due 30 days or more	0.16%	0.31%
Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans		$ 90,000
Residential mortgage- term [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	$ 2,893,000	1,498,000
Residential mortgage- home equity [Member]
Financing Receivable, Modifications [Line Items]
Nonaccrual loans	$ 311,000	$ 403,000

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Percentage of loan portfolio accruing loan past due 30 days or more.

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Amount of financing receivable modified as troubled debt restructuring.

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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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Reflects the aggregate value of loans, trade receivables, securities and financial instruments that serve as collateral for obligations arising from a transfer of financial assets recorded as a secured borrowing.

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Unused amount of commitments to extend credit to customers.

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