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Loans And Leases (Narrative) (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) loan | Sep. 30, 2019 USD ($) loan | Sep. 30, 2020 USD ($) loan | Sep. 30, 2019 USD ($) loan | Dec. 31, 2019 USD ($)
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Loans | $ 871,709,000 |  | $ 871,709,000 |  | $ 663,303,000
Loans 90 days or more past due and still accruing interest |  |  |  |  |
Total TDR's | 2,918,000 |  | 2,918,000 |  | 2,923,000
Allocated specific reserves to modified TDRs | $ 23,000 |  | $ 23,000 |  | 22,000
Number of loans modified as a TDR | loan |  |  | 0 | 0 |
Number of TDRs in payment default | loan | 0 | 0 |  |  |
Cash payments of interest | $ 51,000 | $ 44,000 | $ 105,000 | $ 132,000 |
Recorded investment of loans undergoing modifications, not TDRs | 46,680,000 | $ 12,707,000 | 46,680,000 | $ 12,707,000 |
Loans | 887,201,000 |  | 887,201,000 |  | 670,441,000
Deferral loans outstanding balance | $ 24,000,000 |  | $ 24,000,000 |  |
Northpointe [Member] | Mortgage Purchase Program [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Average days |  |  | 14 days |  |
Percent of loans risk rated for capital adequacy |  |  | 100.00% |  |
Percent of participation agreement interest | 95.00% |  | 95.00% |  |
Ownership interest in each loan is participates |  |  | 5.00% |  |
Allowance allocated loans | $ 0 |  | $ 0 |  |
Single-Family Residential [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Loans | 140,635,000 |  | 140,635,000 |  | 120,256,000
Single-Family Residential [Member] | Northpointe [Member] | Mortgage Purchase Program [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Loans | 24,569,000 |  | 24,569,000 |  | 26,046,000
Accruing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Total TDR's | 2,918,000 |  | 2,918,000 |  | $ 2,838,000
Commercial Loans - Paycheck Protection Program [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Loans | $ 122,900,000 |  | $ 122,900,000 |  |
Maturity term |  |  | 2 years |  |
Stated interest rate | 1.00% |  | 1.00% |  |

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