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Goodwill and Intangibles (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangibles [Abstract] |
Summary of carrying basis and accumulated amortization of recognized intangible assets |
|  | 2017 |  |  | 2016 |
|  | Gross Carrying |  |  | Accumulated |  |  | Gross Carrying |  |  | Accumulated |
($ in thousands) |  | Amount |  |  | Amortization |  |  | Amount |  |  | Amortization |
Core deposits intangible |  | $ | 4,698 |  |  | $ | (4,682 | ) |  | $ | 4,698 |  |  | $ | (4,675 | )
Customer relationship intangible |  |  | 200 |  |  |  | (158 | ) |  |  | 200 |  |  |  | (153 | )
Banking intangibles |  |  | 4,898 |  |  |  | (4,840 | ) |  |  | 4,898 |  |  |  | (4,828 | )

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + 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) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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