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Fair Value Accounting and Measurement (Financial Assets Accounted For Fair Value On Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired loans | $ 10,792 | $ 7,019 | $ 10,792 | $ 7,019
Fair Value, Option, Changes in Fair Value, Gain (Loss) | (1,032) | 3,702 | 3,398 | 3,702
Other Real Estate Owned, Fair Value Disclosure |  | 105 |  | 105
Assets, Fair Value Disclosure | 10,792 | 7,124 | 10,792 | 7,124
Fair Value, Inputs, Level 1 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired loans | 0 | 0 | 0 | 0
Other Real Estate Owned, Fair Value Disclosure |  | 0 |  | 0
Assets, Fair Value Disclosure | 0 | 0 | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired loans | 0 | 0 | 0 | 0
Other Real Estate Owned, Fair Value Disclosure |  | 0 |  | 0
Assets, Fair Value Disclosure | 0 | 0 | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired loans | 10,792 | 7,019 | 10,792 | 7,019
Other Real Estate Owned, Fair Value Disclosure |  | 105 |  | 105
Assets, Fair Value Disclosure | 10,792 | 7,124 | 10,792 | 7,124
Impaired Loans [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value, Option, Changes in Fair Value, Gain (Loss) | $ (1,032) | 3,669 | $ 3,398 | 3,669
Other Real Estate Owned [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value, Option, Changes in Fair Value, Gain (Loss) |  | $ 33 |  | $ 33

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- Definition Other Real Estate Owned, Fair Value Disclosure + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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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 For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
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