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Loans And Allowance For Loan Losses (Troubled Debt Restructurings) (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($) Contract | Dec. 31, 2019 USD ($) Contract | Dec. 31, 2018 USD ($) Contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 352 | 380 | 217
Total loans | $ 76,615,000 | $ 49,859,000 | $ 49,827,000
Write-down | $ 0 | $ 0 | $ 403,000
Total commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 174 | 149 | 62
Total loans | $ 28,917,000 | $ 28,793,000 | $ 21,058,000
Total commercial and industrial | Commercial, financial, and agricultural |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 152 | 127 | 46
Total loans | $ 22,851,000 | $ 18,915,000 | $ 7,764,000
Total commercial and industrial | Owner-occupied |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 22 | 22 | 16
Total loans | $ 6,066,000 | $ 9,878,000 | $ 13,294,000
Total commercial real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 35 | 34 | 40
Total loans | $ 34,579,000 | $ 5,590,000 | $ 16,758,000
Total commercial real estate | Investment properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 9 | 8 | 10
Total loans | $ 31,099,000 | $ 1,548,000 | $ 10,285,000
Total commercial real estate | 1-4 family properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 22 | 18 | 25
Total loans | $ 2,874,000 | $ 2,825,000 | $ 4,495,000
Total commercial real estate | Land and development |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 4 | 8 | 5
Total loans | $ 606,000 | $ 1,217,000 | $ 1,978,000
Total consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 143 | 197 | 115
Total loans | $ 13,119,000 | $ 15,476,000 | $ 12,011,000
Total consumer | Consumer mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 23 | 18 | 19
Total loans | $ 4,655,000 | $ 2,948,000 | $ 5,683,000
Total consumer | Home equity lines |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 63 | 70 | 4
Total loans | $ 4,500,000 | $ 5,546,000 | $ 511,000
Total consumer | Other consumer loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 57 | 109 | 92
Total loans | $ 3,964,000 | $ 6,982,000 | $ 5,817,000
Below Market Interest Rate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 52,550,000 | 29,299,000 | 29,665,000
Below Market Interest Rate | Total commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 15,475,000 | 18,059,000 | 11,396,000
Below Market Interest Rate | Total commercial and industrial | Commercial, financial, and agricultural |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 10,939,000 | 9,042,000 | 3,807,000
Below Market Interest Rate | Total commercial and industrial | Owner-occupied |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 4,536,000 | 9,017,000 | 7,589,000
Below Market Interest Rate | Total commercial real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 32,054,000 | 4,917,000 | 10,673,000
Below Market Interest Rate | Total commercial real estate | Investment properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 29,679,000 | 1,548,000 | 8,070,000
Below Market Interest Rate | Total commercial real estate | 1-4 family properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,769,000 | 2,182,000 | 2,481,000
Below Market Interest Rate | Total commercial real estate | Land and development |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 606,000 | 1,187,000 | 122,000
Below Market Interest Rate | Total consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 5,021,000 | 6,323,000 | 7,596,000
Below Market Interest Rate | Total consumer | Consumer mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,866,000 | 1,587,000 | 5,590,000
Below Market Interest Rate | Total consumer | Home equity lines |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,970,000 | 3,024,000 | 172,000
Below Market Interest Rate | Total consumer | Other consumer loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,185,000 | 1,712,000 | 1,834,000
Other Concessions |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 24,065,000 | 20,560,000 | 20,162,000
Other Concessions | Total commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 13,442,000 | 10,734,000 | 9,662,000
Other Concessions | Total commercial and industrial | Commercial, financial, and agricultural |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 11,912,000 | 9,873,000 | 3,957,000
Other Concessions | Total commercial and industrial | Owner-occupied |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,530,000 | 861,000 | 5,705,000
Other Concessions | Total commercial real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 2,525,000 | 673,000 | 6,085,000
Other Concessions | Total commercial real estate | Investment properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,420,000 | 0 | 2,215,000
Other Concessions | Total commercial real estate | 1-4 family properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,105,000 | 643,000 | 2,014,000
Other Concessions | Total commercial real estate | Land and development |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 0 | 30,000 | 1,856,000
Other Concessions | Total consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 8,098,000 | 9,153,000 | 4,415,000
Other Concessions | Total consumer | Consumer mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 2,789,000 | 1,361,000 | 93,000
Other Concessions | Total consumer | Home equity lines |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 2,530,000 | 2,522,000 | 339,000
Other Concessions | Total consumer | Other consumer loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 2,779,000 | 5,270,000 | 3,983,000
Principal Forgiveness |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | $ 0 | $ 0 | $ 0

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