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Loans (Narrative) (Details) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 24, 2021 USD ($) banking_office | Sep. 30, 2021 USD ($) loan | Sep. 30, 2020 USD ($) loan | Sep. 30, 2021 USD ($) loan | Sep. 30, 2020 USD ($) loan | Dec. 31, 2020 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Interest income on non-accrual loans |  | $ 39,000 | $ 1,000 | $ 71,000 | $ 17,000 |
Troubled debt restructurings |  | 106,000 |  | 106,000 |  | $ 111,000
Additional lending amount to customers whose loan terms has been modified in troubled debt restructuring |  | $ 0 |  | $ 0 |  | 0
Number of loans modified as troubled debt restructurings | loan |  | 0 | 0 | 0 | 0 |
Number of loans modified as troubled debt restructuring subsequently defaulted | loan |  | 0 | 0 | 0 | 0 |
Threshold amount to individually classify loans by credit risk |  | $ 250,000 |  | $ 250,000 |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Brank Branches |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Number of branches sold | banking_office | 2 |  |  |  |  |
Loans included in branches sold | $ 17,799,000 |  |  |  |  |
Deposits included in branches sold | $ 17,614,000 |  |  |  |  |
PPP |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan interest rate |  |  |  | 1.00% |  |
Maturities of loans originated under first round |  |  |  | 2 years |  |
Maturities of loans originated under second round |  |  |  | 5 years |  |
Loans outstanding originated under first round |  |  |  |  |  | 351,260,000
Fees on loans originated under first round |  |  |  |  |  | $ 12,024,000
Number of loans originated under first round | loan |  |  |  |  |  | 3,070
Forgiven loans originated under first round |  | 347,556,000 |  | $ 347,556,000 |  |
Net processing fees recognized on loans originated under first round |  |  |  | 11,997,000 |  |
Loans outstanding originated under second round |  | 157,042,000 |  | 157,042,000 |  |
Fees on loans originated during second round |  | $ 9,022,000 |  | $ 9,022,000 |  |
Number of loans originated under second round | loan |  | 2,601 |  | 2,601 |  |
Forgiven loans originated during second round |  | $ 89,524,000 |  | $ 89,524,000 |  |
Net processing fees recognized on loans originated under second round |  |  |  | 5,873,000 |  |
Loans outstanding |  | 71,222,000 |  | 71,222,000 |  |
Remaining fees on loans outstanding |  | $ 3,175,000 |  | $ 3,175,000 |  |

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