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Net Income (Loss) Per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Weighted Average Common Shares | Basic and diluted weighted average common shares are as follows (in thousands):
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Basic weighted average common shares outstanding |  |  | 18,036 |  |  |  | 18,230 |
Weighted average common equivalent shares |  |  | — |  |  |  | 306 |
Diluted weighted average common shares outstanding |  |  | 18,036 |  |  |  | 18,536 |
Options excluded from diluted weighted average share calculation as effect would have been anti-dilutive |  |  | 1,059 |  |  |  | 374 |

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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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