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Allowance For Loan Losses (Schedule Of Impaired Loans) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
With no related allowance recorded, Recorded investment | $ 3,885 | $ 4,749
With no related allowance recorded, Unpaid principal balance | 7,874 | 8,738
With an allowance recorded, Recorded investment | 5,782 | 2,832
With an allowance recorded, Unpaid principal balance | 5,782 | 2,832
With an allowance recorded, Related allowance | 647 | 665
Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
With no related allowance recorded, Recorded investment | 849 | 1,611
With no related allowance recorded, Unpaid principal balance | 3,013 | 3,775
With an allowance recorded, Recorded investment | 0 | 0
With an allowance recorded, Unpaid principal balance | 0 | 0
With an allowance recorded, Related allowance | 0 | 0
Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
With no related allowance recorded, Recorded investment | 3,036 | 3,138
With no related allowance recorded, Unpaid principal balance | 4,861 | 4,963
With an allowance recorded, Recorded investment | 5,782 | 2,832
With an allowance recorded, Unpaid principal balance | 5,782 | 2,832
With an allowance recorded, Related allowance | $ 647 | $ 665

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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