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Allowance for Credit Losses (Non-accrual Basis By Loan Class) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | $ 4,102 | $ 4,886
Commercial, financial and agricultural | Domestic | Commercial |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 1,595 | 1,901
Commercial, financial and agricultural | Domestic | Commercial Real Estate: farmland and commercial |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 536 | 1,208
Commercial, financial and agricultural | Domestic | Commercial Real Estate: multifamily |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 137 | 165
Real estate - construction | Domestic | Commercial Real Estate: other construction and land development |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 914 | 938
Real estate - mortgage | Domestic | Residential First Lien |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 876 | 670
Real estate - mortgage | Domestic | Residential Junior Lien |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 41 |
Consumer | Domestic |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | $ 3 | $ 4

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