Net Loss per Common Share (Tables) |
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Reconciliation of Numerators and Denominators Used In Computing Net Loss From Continuing Operations Per Share | A reconciliation of the numerators and denominators used in computing net loss from continuing operations per share is as follows (in thousands, except per share amounts):
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| Summary of Potentially Dilutive Securities Excluded from Computation of Diluted Per Share | Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:
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