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Loans And Leases (Recorded Investment In Nonaccrual Loans By Class Of Loans) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans past due over 90 days still on accrual |  |
Total nonaccrual and nonperforming loans | 470 | 704
Commercial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total nonaccrual and nonperforming loans | 115 | 263
Single-Family Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total nonaccrual and nonperforming loans | 253 | 397
Home Equity Line of Credit, Originated Portfolio [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total nonaccrual and nonperforming loans |  | 44
Home Equity Line of Credit, Purchased Portfolio [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total nonaccrual and nonperforming loans | 102 |
Nonaccrual [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total nonaccrual and nonperforming loans | $ 470 | $ 704

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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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