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Troubled Debt Restructurings (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($) contract | Dec. 31, 2018 USD ($) contract | Dec. 31, 2017 contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of troubled debt restructured loans | 18 | 19 |
Total troubled debt restructured loans | $ | $ 3,000 | $ 3,800 |
Number of contracts in nonaccrual status | 4 | 2 |
Total of loans in nonaccrual status | $ | $ 401 | $ 118 |
Number of contracts | 0 | 1 | 1
Loan is considered payment default | 30 days |  |
Consumer Installment [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of contracts |  |  | 1
Number of contracts modified by reducing the interest rate |  |  | 1
Residential Single Family [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of contracts modified by changing the amortization period |  | 1 |

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