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Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring And Nonrecurring Basis) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Impaired Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Provision For Loan Losses on Impaired Loans During Period | $ (356) | $ (647)
Other real estate owned |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Write-downs included in other non-interest expense | (328) | (374)
Other Assets |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Write-downs included in other non-interest expense |  | (170)
Other Assets | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure |  | 0
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 1 | 2
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 1 | 2
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 91,564 | 96,196
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 91,564 | 96,196
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies Mortgage-backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 447,746 | 419,347
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies Mortgage-backed Securities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies Mortgage-backed Securities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 447,746 | 419,347
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies Mortgage-backed Securities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Private Label |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 529 | 652
Fair Value, Measurements, Recurring [Member] | Private Label | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Private Label | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 529 | 652
Fair Value, Measurements, Recurring [Member] | Private Label | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 4,798 | 4,736
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 4,537 | 4,475
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 261 | 261
Fair Value, Measurements, Recurring [Member] | Corporate Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 16,921 | 22,268
Fair Value, Measurements, Recurring [Member] | Corporate Securities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Corporate Securities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 16,921 | 22,268
Fair Value, Measurements, Recurring [Member] | Corporate Securities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Equity Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 11,559 | 5,699
Fair Value, Measurements, Recurring [Member] | Equity Securities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 6,686 | 5,699
Fair Value, Measurements, Recurring [Member] | Equity Securities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 4,873 | 0
Fair Value, Measurements, Recurring [Member] | Equity Securities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Money Market Funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 1,444 | 1,489
Fair Value, Measurements, Recurring [Member] | Money Market Funds | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 1,444 | 1,489
Fair Value, Measurements, Recurring [Member] | Money Market Funds | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Money Market Funds | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 27,188 | 14,502
Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 27,188 | 14,502
Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Derivative Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 26,831 | 14,390
Fair Value, Measurements, Recurring [Member] | Derivative Liabilities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Derivative Liabilities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 26,831 | 14,390
Fair Value, Measurements, Recurring [Member] | Derivative Liabilities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 10,196 | 9,020
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 10,196 | 9,020
Fair Value, Measurements, Nonrecurring [Member] | Other real estate owned |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 4,259 | 3,585
Fair Value, Measurements, Nonrecurring [Member] | Other real estate owned | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Other real estate owned | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Other real estate owned | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | $ 4,259 | 3,585
Fair Value, Measurements, Nonrecurring [Member] | Other Assets |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure |  | 0
Fair Value, Measurements, Nonrecurring [Member] | Other Assets | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure |  | 0
Fair Value, Measurements, Nonrecurring [Member] | Other Assets | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure |  | $ 0

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