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Basis of Presentation of Interim Period Statements (Tables) | 6 Months Ended
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Jun. 30, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Summary of Basic and Diluted Common Shares Outstanding | Basic and diluted shares outstanding are summarized as follows (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Weighted average number of basic shares outstanding |  |  | 7,254 |  |  |  | 7,210 |  |  |  | 7,252 |  |  |  | 7,209 |
Effect of dilutive securities |  |  | 296 |  |  |  | 118 |  |  |  | — |  |  |  | 114 |
Weighted average number of diluted shares outstanding |  |  | 7,550 |  |  |  | 7,328 |  |  |  | 7,252 |  |  |  | 7,323 |

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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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