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Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 USD ($) contracts | Sep. 30, 2017 USD ($) contracts | Sep. 30, 2018 USD ($) contracts | Sep. 30, 2017 USD ($) contracts
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Additional Specific Reserves Related To Troubled Debt Restructuring | $ 150,000 | $ 0 | $ 160,000 | $ 290,000
Troubled Debt Restructuring, Classification removed | $ 200,000 |  | $ 2,400,000 | $ 0
Number of Contracts | contracts | 106 | 139 | 289 | 325
Total Recorded Investment | $ 3,704,000 | $ 4,938,000 | $ 6,566,000 | $ 10,765,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period | $ 1,112,000 | $ 825,000 | $ 1,290,000 | $ 1,088,000
Construction Real Estate - Mortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 0 | 0 | 0 | 1
Total Recorded Investment |  |  |  | $ 8,000
Commercial Financial And Agricultural [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 8 | 14 | 16 | 25
Total Recorded Investment | $ 574,000 | $ 1,415,000 | $ 800,000 | $ 4,169,000
Residential Real Estate Commercial [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 2 | 10 | 2 | 15
Total Recorded Investment | $ 304,000 | $ 498,000 | $ 304,000 | $ 702,000
Residential Real Estate - Mortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 4 | 5 | 17 | 24
Total Recorded Investment | $ 246,000 | $ 417,000 | $ 1,062,000 | $ 1,669,000
Construction Real Estate - Installment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 0 | 0 | 2 | 0
Total Recorded Investment |  |  | $ 12,000 |
Residential Real Estate Installment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | $ 336,000 | $ 151,000 | $ 453,000 | $ 216,000
Residential Real Estate Home Equity Line Of Credit [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 10 | 4 | 18 | 16
Total Recorded Investment | $ 469,000 | $ 168,000 | $ 860,000 | $ 529,000
Construction Real Estate Commercial [Domain] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 0 | 0 | 1 | 0
Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 3 | 3 | 10 | 9
Total Recorded Investment | $ 1,154,000 | $ 1,455,000 | $ 1,859,000 | $ 2,320,000
Residential Real Estate Installment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 8 | 4 | 17 | 7
Consumer [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Number of Contracts | contracts | 71 | 99 | 206 | 228
Total Recorded Investment | $ 621,000 | $ 834,000 | $ 1,216,000 | $ 1,152,000
Accruing [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 897,000 | 2,061,000 | 2,043,000 | 3,608,000
Accruing [Member] | Construction Real Estate - Mortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 0 | 0 | 0 | 0
Accruing [Member] | Commercial Financial And Agricultural [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 22,000 | 400,000 | 208,000 | 400,000
Accruing [Member] | Residential Real Estate Commercial [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 55,000 | 144,000 | 55,000 | 144,000
Accruing [Member] | Residential Real Estate - Mortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 0 | 211,000 | 90,000 | 746,000
Accruing [Member] | Construction Real Estate - Installment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 0 | 0 | 12,000 | 0
Accruing [Member] | Residential Real Estate Installment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 336,000 | 110,000 | 437,000 | 175,000
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 453,000 | 123,000 | 735,000 | 478,000
Accruing [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment |  | 974,000 | 447,000 | 1,525,000
Accruing [Member] | Consumer [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 31,000 | 99,000 | 59,000 | 140,000
Nonaccrual [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 2,807,000 | 2,877,000 | 4,523,000 | 7,157,000
Nonaccrual [Member] | Construction Real Estate - Mortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment |  |  |  | 8,000
Nonaccrual [Member] | Commercial Financial And Agricultural [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 552,000 | 1,015,000 | 592,000 | 3,769,000
Nonaccrual [Member] | Residential Real Estate Commercial [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 249,000 | 354,000 | 249,000 | 558,000
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 246,000 | 206,000 | 972,000 | 923,000
Nonaccrual [Member] | Residential Real Estate Installment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment |  | 41,000 | 16,000 | 41,000
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 16,000 | 45,000 | 125,000 | 51,000
Nonaccrual [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 1,154,000 | 481,000 | 1,412,000 | 795,000
Nonaccrual [Member] | Consumer [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | 590,000 | 735,000 | 1,157,000 | 1,012,000
Commercial Portfolio Segment [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total Recorded Investment | $ 0 | $ 918,000 | $ 200,000 | $ 1,000,000

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