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Loss Per Common Share | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Loss Per Common Share |
(1 4) | Loss Per Common Share
Basic earnings (loss) per common share is based on the weighted average number of common shares outstanding for the year ended December 31, 2018 and 2017. Diluted earnings (loss) per common share is based on the weighted average number of common shares outstanding, plus the incremental shares that would have been outstanding upon the assumed exercise of all potentially dilutive stock options and other units subject to anti-dilution limitations. 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 The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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