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Net (Loss) Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Reconciliation of net income loss available to common stockholders |
|  | Three Months Ended |  |  | Nine Months Ended
|  | September 30 |  |  | September 30
|  | 2019 |  | 2018 |  |  | 2019 |  |  | 2018
Basic and diluted earnings (loss) per common share: |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  | $ | (8,210) |  | $ | (1,136) |  | $ | (4,169) |  | $ | 2,186
Less: |  |  |  |  |  |  |  |  |  |  |  |
Net income from discontinued operations, net of tax |  |  | — |  |  | (1) |  |  | — |  |  | (5,725)
Deemed dividends on convertible preferred stock |  |  | — |  |  | — |  |  | — |  |  | (423)
Net loss attributable to common stockholders |  | $ | (8,210) |  | $ | (1,137) |  | $ | (4,169) |  | $ | (3,962)
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares used in computing basic and diluted net loss per share attributable to common stockholders |  |  | 7,472,469 |  |  | 5,627,656 |  |  | 5,947,821 |  |  | 5,669,913
Basic and diluted net loss per share attributable to common stockholders |  | $ | (1.10) |  | $ | (0.20) |  | $ | (0.70) |  | $ | (0.70)
Antidilutive securities excluded from computation of earnings per share |
| Three Months Ended |  |  | Nine Months Ended
| September 30, |  |  | September 30,
| 2019 |  | 2018 |  |  | 2019 |  | 2018
Redeemable convertible preferred stock | 65,428,088 |  | 65,428,088 |  |  | 65,428,088 |  | 66,138,874
Options to purchase common stock | 12,589,387 |  | 5,807,298 |  |  | 11,314,536 |  | 4,352,695
Warrants to purchase common stock | 119,674 |  | 65,549 |  |  | 112,181 |  | 46,173
Warrants to purchase convertible preferred stock | 1,564,952 |  | 378,222 |  |  | 1,400,660 |  | —
Total potential dilutive shares | 79,702,101 |  | 71,679,157 |  |  | 78,255,465 |  | 70,537,742

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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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