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Allowance for Loan Losses (Nonaccrual and Past Due Loans By Class) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | $ 3,789 | $ 2,187 |
Current | 641,418 | 605,128 |
Total Loans | 645,207 | 607,315 | $ 569,238
90 or More Days Past Due Still Accruing | 0 | 695 |
Nonaccrual Loans | 2,185 | 2,118 |
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 1,772 | 1,091 |
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 547 | 196 |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 1,470 | 900 |
Commercial - Non Real Estate Commercial And Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 79 | 127 |
Current | 46,464 | 32,959 |
Total Loans | 46,543 | 33,086 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Nonaccrual Loans | 32 | 1,081 |
Commercial - Non Real Estate Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 47 | 127 |
Commercial - Non Real Estate Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Commercial - Non Real Estate Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 32 | 0 |
Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 1,078 | 0 |
Current | 147,879 | 136,309 |
Total Loans | 148,957 | 136,309 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Nonaccrual Loans | 320 | 0 |
Commercial Real Estate Owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 1,078 | 0 |
Commercial Real Estate Owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Commercial Real Estate Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Commercial Real Estate Non-Owner Occupied [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Current | 137,643 | 129,286 |
Total Loans | 137,643 | 129,286 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Nonaccrual Loans | 329 | 364 |
Commercial Real Estate Non-Owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Commercial Real Estate Non-Owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Commercial Real Estate Non-Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Construction And Farmland Residential [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Current | 7,867 | 6,706 |
Total Loans | 7,867 | 6,706 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Construction And Farmland Residential [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Construction And Farmland Residential [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Construction And Farmland Residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 |  |
Construction And Farmland Commercial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 187 | 0 |
Current | 48,424 | 55,220 |
Total Loans | 48,611 | 55,220 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Nonaccrual Loans | 187 | 0 |
Construction And Farmland Commercial [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Construction And Farmland Commercial [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Construction And Farmland Commercial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 187 | 0 |
Consumer Installment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 61 | 4 |
Current | 9,480 | 8,466 |
Total Loans | 9,541 | 8,470 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Nonaccrual Loans | 8 | 0 |
Consumer Installment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 55 | 4 |
Consumer Installment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 6 | 0 |
Consumer Installment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Residential Equity Lines [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 121 | 0 |
Current | 33,127 | 32,815 |
Total Loans | 33,248 | 32,815 |
90 or More Days Past Due Still Accruing | 0 | 0 |
Nonaccrual Loans | 65 | 92 |
Residential Equity Lines [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 121 | 0 |
Residential Equity Lines [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Residential Equity Lines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 0 | 0 |
Residential Single Family [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 2,263 | 2,056 |
Current | 184,069 | 186,990 |
Total Loans | 186,332 | 189,046 |
90 or More Days Past Due Still Accruing | 0 | 695 |
Nonaccrual Loans | 1,244 | 581 |
Residential Single Family [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 471 | 960 |
Residential Single Family [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 541 | 196 |
Residential Single Family [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Past Due | 1,251 | 900 |
Residential Multifamily [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Current | 14,415 | 7,923 |
Total Loans | 14,415 | 7,923 |
90 or More Days Past Due Still Accruing | 0 | 0 |
All Other Loans [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Current | 12,050 | 8,454 |
Total Loans | 12,050 | 8,454 | $ 2,050
90 or More Days Past Due Still Accruing | $ 0 | $ 0 |

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