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Long-Term Debt (Components Of Long-Term Debt) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2019 | Dec. 31, 2017
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt | $ 16,495 |  | $ 16,495 |  |  | $ 16,495
Junior subordinated debentures, interest rate |  |  | 5.83% |  |  | 5.09%
Junior subordinated debentures, due date |  |  | Jun. 30, 2038 |  |  | Jun. 30, 2038
Percent over three month LIBOR Rate | 3.50% |  | 3.50% |  |  | 3.50%
Junior subordinated debenture, Threshold in days |  |  | 90 days |  |  | 90 days
Debt Instrument, Redemption Price, Percentage |  |  | 100.00% |  |  |
Capital Securities, Redemption Price, Percentage |  |  | 100.00% |  |  |
Interest on long-term debt | $ 239 | $ 195 | $ 680 | $ 565 |  |
Scenario, Forecast |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest on long-term debt |  |  |  |  | $ 1,000 |

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- Definition Capital Securities, Redemption Price, Percentage + References No definition available. + Details
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- Definition Distributions On Debentures Interest Rate Over Three Month Libor Rate + References No definition available. + Details
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- Definition Subordinated Borrowing Threshold In Days After Redemption Date For Redemption In Part + References No definition available. + Details
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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- Definition Aggregate amount of interest paid or due on all long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.8) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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