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Loans (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($) loan | Dec. 31, 2019 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Interest income recognized on non-accrual loans | $ 28,000 |
Troubled debt restructurings | 111,000 | $ 116,000
Allowance for troubled debt restructurings | 0 |
Troubled debt restructuring, additional lending amount | $ 0 | $ 0
Number of loans modified as debt restructurings | loan | 0 | 0
Number of loans that subsequently default after modification | loan | 0 | 0
Threshold amount to individually evaluate loans for impairment | $ 250,000 |
PPP Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans originated under government program | 351,300,000 |
Loans originated under government program, net of deferred fees | $ 339,300,000 |
Number of loans outstanding under government program | loan | 3,070 |
PPP Loans | Commercial and Industrial Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans outstanding under government program | $ 186,000,000.0 |
Loans outstanding under government program, net of deferred fees | $ 182,000,000.0 |

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