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Net Income (Loss) Per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Summary of Net Income (Loss) Per Share | The following table summarizes the computation of basic and diluted net income (loss) per common share.
|  | Year Ended December 31,
|  | 2019 |  | 2018 |  | 2017
Numerator: |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | (46,741 | ) |  | $ | (262,987 | ) |  | $ | 24,549 |
Income from discontinued operations, net of tax |  | — |  |  | — |  |  | 137,688 |
Net income (loss) |  | (46,741 | ) |  | (262,987 | ) |  | 162,237 |
Less: Preferred Stock cumulative dividends and deemed dividends |  | (642 | ) |  | — |  |  | — |
Numerator for basic and diluted net income (loss) per common share (1) |  | $ | (47,383 | ) |  | $ | (262,987 | ) |  | $ | 162,237 |
Denominator: |  |  |  |  |  |
Weighted average common shares outstanding |  | 42,030 |  |  | 31,678 |  |  | 27,433 |
Effect of dilutive stock options |  | — |  |  | — |  |  | 322 |
Diluted shares outstanding |  | 42,030 |  |  | 31,678 |  |  | 27,755 |
Basic income (loss) from continuing operations per common share |  | $ | (1.13 | ) |  | $ | (8.30 | ) |  | $ | 0.89 |
Basic income from discontinued operations per common share |  | — |  |  | — |  |  | 5.02 |
Basic net income (loss) per common share |  | $ | (1.13 | ) |  | $ | (8.30 | ) |  | $ | 5.91 |
Diluted income (loss) from continuing operations per common share |  | $ | (1.13 | ) |  | $ | (8.30 | ) |  | $ | 0.89 |
Diluted income from discontinued operations per common share |  | — |  |  | — |  |  | 4.96 |
Diluted net income (loss) per common share |  | $ | (1.13 | ) |  | $ | (8.30 | ) |  | $ | 5.85 |
Cash dividends declared per common share |  | $ | 0.21 |  |  | $ | 0.28 |  |  | $ | 0.28 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] | The following table presents the number of potentially dilutive securities that were excluded from the calculation of diluted income (loss) from continuing operations per common share and diluted net income (loss) per common share because they had an anti-dilutive effect.
|  | Year Ended December 31,
|  | 2019 |  | 2018 |  | 2017
Options |  | 577 |  |  | 428 |  |  | 400 |
Warrants |  | 1,500 |  |  | — |  |  | — |
Preferred Stock, as-converted |  | 12,976 |  |  | — |  |  | — |
|  | 15,053 |  |  | 428 |  |  | 400 |

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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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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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