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Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Weighted Average Number Of Shares Used In Computing Earnings Per Share | The following table shows the weighted average number of shares used in computing earnings per share for the three and six months ended June 30, 2018 and 2017. During 2018 and 2017, there were no potentially dilutive securities outstanding.
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Weighted average number of common shares outstanding used to calculate basic and diluted earnings per share | 3,465,601 |  |  | 3,474,628 |  |  | 3,463,621 |  |  | 3,476,159 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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