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Loans And Leases (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($) loan | Dec. 31, 2019 USD ($) loan
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans |  | $ 895,344,000 | $ 663,303,000
Loans 90 days or more past due and still accruing interest |  |  |
Total TDR's |  | 3,090,000 | 2,923,000
Allocated specific reserves to modified TDRs |  | $ 23,000 | $ 22,000
Number of TDRs in payment default | loan |  | 0 | 0
Loans rated doubtful | loan |  |  | 0
Cash payments of interest |  | $ 159,000 | $ 168,000
Loans |  | 912,366,000 | 670,441,000
Deferral loans outstanding balance |  | $ 528,000 |
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% |
Ownership interest in each loan is participates |  | 5.00% |
Nonaccrual [Member] | Commitments To Lend Additional Amounts [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Total TDR's |  | $ 0 | 0
Single-Family Residential [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans |  | 147,860,000 | 120,256,000
Single-Family Residential [Member] | Northpointe [Member] | Mortgage Purchase Program [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans |  | 15,713,000 | $ 26,046,000
Commercial Real Estate [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Total TDR's |  | $ 190,000 |
Number of loans modified as a TDR | loan |  | 1 | 0
TDR's charge-offs |  | $ 264,000 | $ 0
Loans | [1] | 338,286,000 | 170,646,000
Accruing [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Total TDR's |  | 2,900,000 | $ 2,838,000
Commercial Loans - Paycheck Protection Program [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans |  | $ 105,269,000 |
Maturity term |  | 2 years |
Stated interest rate |  | 1.00% |
[1] | Includes $4,133 and $4,779 of commercial leases at December 31, 2020 and December 31, 2019, respectively.

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