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Loss Per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Potentially Anti-dilutive Securities Not Considered in Calculation of Diluted Earnings Per Share | Potentially dilutive securities not considered in the calculation of diluted earnings per share because losses caused their effect is anti-dilutive, are as follows at December 31, 2018 and 2017:
| Year Ended December 31, |
|  | 2018 |  |  |  | 2017 |
Convertible preferred stock |  | 2,212,389 |  |  |  | 2,212,389 |
Stock warrants |  | 825,000 |  |  |  | 825,000 |
Restricted units |  | 5,031 |  |  |  | 165,210 |
|  | 3,042,420 |  |  |  | 3,202,509 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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