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Loans and Allowance for Loan and Lease Losses (Classes Of The Loan Portfolio Summarized By The Aggregate Risk Rating) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | $ 877,386 | $ 813,924 | $ 791,484
Home Equity [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 40,350 | 37,608 | 36,451
Pass [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 858,553 | 799,937 |
Pass [Member] | Home Equity [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 39,919 | 37,242 |
Special Mention [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 2,634 | 3,071 |
Special Mention [Member] | Home Equity [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 114 | 142 |
Substandard [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 16,199 | 10,916 |
Substandard [Member] | Home Equity [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 317 | 224 |
Commercial Portfolio [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 182,857 | 172,518 | 168,075
Commercial Portfolio [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 490,603 | 446,524 | 421,452
Commercial Portfolio [Member] | Commercial Real Estate - Construction [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 58,074 | 54,376 | 57,319
Commercial Portfolio [Member] | Pass [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 176,801 | 170,780 |
Commercial Portfolio [Member] | Pass [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 480,258 | 437,592 |
Commercial Portfolio [Member] | Pass [Member] | Commercial Real Estate - Construction [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 57,400 | 52,888 |
Commercial Portfolio [Member] | Special Mention [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 489 | 937 |
Commercial Portfolio [Member] | Special Mention [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 1,745 | 1,683 |
Commercial Portfolio [Member] | Special Mention [Member] | Commercial Real Estate - Construction [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 187 | 202 |
Commercial Portfolio [Member] | Substandard [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 5,567 | 801 |
Commercial Portfolio [Member] | Substandard [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 8,600 | 7,249 |
Commercial Portfolio [Member] | Substandard [Member] | Commercial Real Estate - Construction [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 487 | 1,286 |
Finance Leases Portfolio [Member] | Lease Financing [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 259 | 425 | 506
Finance Leases Portfolio [Member] | Pass [Member] | Lease Financing [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 259 | 425 |
Residential Portfolio [Member] | Residential Mortgage [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 101,073 | 99,457 | 104,483
Residential Portfolio [Member] | Pass [Member] | Residential Mortgage [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 99,746 | 97,994 |
Residential Portfolio [Member] | Special Mention [Member] | Residential Mortgage [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 99 | 107 |
Residential Portfolio [Member] | Substandard [Member] | Residential Mortgage [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 1,228 | 1,356 |
Consumer Portfolio [Member] | Consumer [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | 4,170 | 3,016 | $ 3,198
Consumer Portfolio [Member] | Pass [Member] | Consumer [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Gross, Carrying Amount | $ 4,170 | $ 3,016 |

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