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Troubled Debt Restructurings (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) loan contract | Dec. 31, 2019 USD ($) loan
Financing Receivable Modifications [Line Items] |  |
Number of troubled debt restructured loans | loan | 17 | 18
Total troubled debt restructured loans | $ | $ 3,300 | $ 3,000
Financing Receivable, Modifications, Nonaccrual, Number of Contracts | loan | 3 | 4
Financing Receivable, Modifications, Nonaccrual, Recorded Investment | $ | $ 796 | $ 401
Number of deferral loans of interest and principal payments | loan | 255 |
Deferrals on outstanding loan balances | $ | $ 128,700 |
Number of loans making payment after deferral option passed | loan | 241 |
Number of contractions modified by granting concession | 5 |
Consumer Installment |  |
Financing Receivable Modifications [Line Items] |  |
Number of contracts modified by changing the amortization period | 1 |
Residential Single Family |  |
Financing Receivable Modifications [Line Items] |  |
Number of contracts modified by changing the amortization period | 1 |
Number of contracts modified by reduced payment amount | 1 |
Number of contracts modified by new policy exception | 1 |
Loan is considered payment default | 30 days |
Commercial Real Estate |  |
Financing Receivable Modifications [Line Items] |  |
Number of contracts modified by granting interest | 1 |
Payment Deferral [Member] | CARES Act [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Deferrals on outstanding loan balances | $ | $ 130,500 |

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