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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Schedule of basic and diluted earnings per share |
(Dollars in thousands, except per share data) |  |  |  |  |  |  |  |  |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Basic |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 6,090 |  |  | $ | 5,743 |  |  | $ | 5,695 |
Weighted average common shares outstanding |  |  | 3,287,109 |  |  |  | 3,289,296 |  |  |  | 3,298,177 |
Basic earnings per common shares |  | $ | 1.85 |  |  | $ | 1.75 |  |  | $ | 1.73 |
Diluted |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 6,090 |  |  | $ | 5,743 |  |  | $ | 5,695 |
Weighted average common shares outstanding |  |  | 3,287,109 |  |  |  | 3,289,296 |  |  |  | 3,298,177 |
Plus dilutive stock options and restricted stock units |  |  | 4,972 |  |  |  | 7,925 |  |  |  | 12,116 |
Weighted average common shares outstanding and potentially dilutive shares |  |  | 3,292,081 |  |  |  | 3,297,221 |  |  |  | 3,310,293 |
Diluted earnings per common share |  | $ | 1.85 |  |  | $ | 1.74 |  |  | $ | 1.72 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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