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Loans And Related Allowances For Loan Losses (Average of Impaired Loans and Related Interest Income by Loan Portfolio Class) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Financing Receivable, Impaired [Line Items] |  |
Average Investment | $ 9,517 | $ 13,554
Interest income recognized on an accrual basis | 220 | 259
Interest income recognized on a cash basis | 99 | 5
Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 2,836 | 131
Interest income recognized on an accrual basis | 12 | 9
Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 2,840 | 3,203
Interest income recognized on an accrual basis | 118 | 144
Interest income recognized on a cash basis | 94 |
Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 252 | 278
Interest income recognized on an accrual basis | 11 | 12
Acquisition and development- All other A&D [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 557 | 6,709
Interest income recognized on an accrual basis | 9 | 12
Interest income recognized on a cash basis |  | 1
Commercial and industrial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 18 | 16
Residential mortgage- term [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 2,561 | 2,593
Interest income recognized on an accrual basis | 70 | 82
Interest income recognized on a cash basis | 5 |
Residential mortgage- home equity [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 439 | 604
Interest income recognized on a cash basis |  | 4
Consumer [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | $ 14 | $ 20

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