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Loans And Leases (Balance In ALLL And Recorded Investment In Loans By Portfolio Segment And Based On Impairment Method) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Jun. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | $ 24 |  | $ 26 |  |  |
Collectively evaluated for impairment | 6,981 |  | 6,944 |  |  |
Total ending allowance balance | 7,005 | $ 6,981 | 6,970 | $ 6,964 | $ 6,958 | $ 6,925
Individually evaluated for impairment | 3,351 |  | 3,576 |  |  |
Collectively evaluated for impairment | 497,183 |  | 409,800 |  |  |
Subtotal | 500,534 |  | 413,376 |  |  |
Single-Family Residential [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Collectively evaluated for impairment | 1,038 |  | 912 |  |  |
Total ending allowance balance | 1,038 | 1,039 | 912 | 937 | 956 | 735
Individually evaluated for impairment | 112 |  | 116 |  |  |
Collectively evaluated for impairment | 93,870 |  | 95,462 |  |  |
Subtotal | 93,982 |  | 95,578 |  |  |
Multi-Family Residential [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Collectively evaluated for impairment | 697 |  | 660 |  |  |
Total ending allowance balance | 697 | 697 | 660 | 797 | 725 | 716
Collectively evaluated for impairment | 48,400 |  | 35,665 |  |  |
Subtotal | 48,400 |  | 35,665 |  |  |
Construction [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Collectively evaluated for impairment | 619 |  | 672 |  |  |
Total ending allowance balance | 619 | 614 | 672 | 638 | 586 | 580
Collectively evaluated for impairment | 46,081 |  | 42,862 |  |  |
Subtotal | 46,081 |  | 42,862 |  |  |
Home Equity Lines of Credit [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Collectively evaluated for impairment | 466 |  | 597 |  |  |
Total ending allowance balance | 466 | 486 | 597 | 588 | 554 | 486
Collectively evaluated for impairment | 23,849 |  | 25,054 |  |  |
Subtotal | 23,849 |  | 25,054 |  |  |
Commercial [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Collectively evaluated for impairment | 1,929 |  | 1,984 |  |  |
Total ending allowance balance | 1,929 | 1,889 | 1,984 | 1,883 | 1,770 | 1,647
Individually evaluated for impairment | 201 |  | 277 |  |  |
Collectively evaluated for impairment | 130,975 |  | 101,698 |  |  |
Subtotal | 131,176 |  | 101,975 |  |  |
Real Estate Commercial [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 24 |  | 26 |  |  |
Collectively evaluated for impairment | 2,135 |  | 2,117 |  |  |
Total ending allowance balance | 2,159 | 2,149 | 2,143 | 2,119 | 2,365 | 2,727
Individually evaluated for impairment | 3,038 |  | 3,183 |  |  |
Collectively evaluated for impairment | 148,347 |  | 108,683 |  |  |
Subtotal | 151,385 |  | 111,866 |  |  |
Other [Member] |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |
Collectively evaluated for impairment | 97 |  | 2 |  |  |
Total ending allowance balance | 97 | $ 107 | 2 | $ 2 | $ 2 | $ 34
Collectively evaluated for impairment | 5,661 |  | 376 |  |  |
Subtotal | $ 5,661 |  | $ 376 |  |  |

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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