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Income Taxes (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Taxes [Line Items] |  |  |  |  |
Net operating loss carryforwards |  | $ 3,008,000 | $ 5,465,000 |  |
Charitable contribution carryforwards |  | $ 785,000 | 1,157,000 |  |
Charitable contribution carryforwards expiration |  | between 2020 and 2022 |  |  |
Charitable contribution carryforwards written off |  | $ 211,000 |  |  |
Additional tax expense recorded related to charitable contribution carryforwards | $ 44,000 |  |  |  |
Deferred tax assets, Acquired AMT carryforward |  | $ 860,000 | $ 1,433,000 |  |
Income tax impacts of the components of other comprehensive income |  | 21.00% | 21.00% | 34.00% |
Rate change adjustment |  |  |  | $ 1,169,000 |
Unrecognized tax benefits that would affect the effective income tax rate if recognized |  | $ 0 |  |  |
Income tax examination, penalties and interest expense |  | 0 | $ 0 | $ 0 |
Income tax examination, penalties and interest accrued |  | 0 | 0 |  |
Scottdale Bank and Trust Company [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Taxable income related to acquisition |  | 1,313,000 |  |  |
Net operating loss carryforwards utilized |  | 1,238,000 |  |  |
First Priority Financial Corp. [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Taxable income related to acquisition |  | $ 1,854,000 |  |  |
Net operating loss carryforwards |  |  | $ 2,561,000 |  | $ 447,000
Net operating loss carryforwards expiration period |  | expire in 2031 and 2032 |  |  |
Acquired Section 1231 losses |  | $ 314,000 |  |  |
Acquired section 1231 losses, expire period |  | 2022 |  |  |

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