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Net Income Per Share (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Schedule of Weighted Average Shares Outstanding Basic and Diluted | The share effect is as follows:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Weighted average shares outstanding: |  |  |  |  |  |  |
Common shares | 19,158,654 |  |  | 19,150,749 |  |  | 19,157,004 |  |  | 19,277,014 |
Vested restricted stock units | 306,909 |  |  | 256,595 |  |  | 299,385 |  |  | 251,161 |
Basic number of weighted average shares outstanding | 19,465,563 |  |  | 19,407,344 |  |  | 19,456,389 |  |  | 19,528,175 |
Dilutive effect of restricted stock and restricted stock units | 8,415 |  |  | 8,201 |  |  | 15,808 |  |  | 19,499 |
Dilutive number of weighted average shares outstanding | 19,473,978 |  |  | 19,415,545 |  |  | 19,472,197 |  |  | 19,547,674 |

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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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