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Goodwill and Other Intangibles (Schedule of Components of Goodwill and Other Acquired Intangible Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017
Goodwill and Intangible Assets [Line Items] |  |
Goodwill, Gross | $ 30,922 | $ 30,922
Accumulated Impairment Charges | (2,637) | (2,637)
Accumulated Amortization | (667) | (667)
Goodwill, Total | 27,618 | 27,618
Other intangible assets, Amortizable, Gross Carrying Amount | 6,459 | 6,459
Other intangible assets, Amortizable, Accumulated Impairment Charges | (95) | (95)
Other intangible assets, Amortizable, Accumulated Amortization | (2,536) | (2,425)
Total amortizing intangible assets | 3,828 | 3,939
Other intangible assets, Unamortizable, Net Carrying Amount |  | 780
Intangible Assets, Gross (Excluding Goodwill) | 7,239 | 7,239
Intangible Assets, Net (Excluding Goodwill), Total | 4,608 | 4,719
Employment Agreements[Member] |  |
Goodwill and Intangible Assets [Line Items] |  |
Other intangible assets, Amortizable, Gross Carrying Amount | 440 | 440
Other intangible assets, Amortizable, Accumulated Amortization | (440) | (440)
Insurance Expirations [Member] |  |
Goodwill and Intangible Assets [Line Items] |  |
Other intangible assets, Amortizable, Gross Carrying Amount | 1,270 | 1,270
Other intangible assets, Amortizable, Accumulated Amortization | (1,270) | (1,270)
Customer Relationships [Member] |  |
Goodwill and Intangible Assets [Line Items] |  |
Other intangible assets, Amortizable, Gross Carrying Amount | 795 | 795
Other intangible assets, Amortizable, Accumulated Impairment Charges | (95) | (95)
Other intangible assets, Amortizable, Accumulated Amortization | (496) | (484)
Total amortizing intangible assets | $ 204 | $ 216
Weighted Average Remaining Life (in years) | 4 years 4 months 24 days | 4 years 7 months 6 days
Core Deposits [Member] |  |
Goodwill and Intangible Assets [Line Items] |  |
Other intangible assets, Amortizable, Gross Carrying Amount | $ 3,954 | $ 3,954
Other intangible assets, Amortizable, Accumulated Amortization | (330) | (231)
Total amortizing intangible assets | $ 3,624 | $ 3,723
Weighted Average Remaining Life (in years) | 9 years 2 months 12 days | 9 years 4 months 24 days
Trade Names [Member] |  |
Goodwill and Intangible Assets [Line Items] |  |
Other intangible assets, Unamortizable, Net Carrying Amount | $ 780 | $ 780

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- Definition Cumulative loss recognized that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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