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Net Loss Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Net Loss Per Share |
Schedule of basic and diluted net loss per share |
|  | Year Ended December 31,
|  | 2020 |  | 2019
Numerator: |  |  |  |  |  |
Net loss |  | $ | (27,514) |  | $ | (32,900)
Dividend attributable to down round feature of warrants |  |  | (303) |  |  | (359)
Dividend attributable to Series A & B convertible preferred stock |  |  | (372) |  |  | —
Series A & B convertible preferred stock - beneficial conversion feature |  |  | (9,399) |  |  | —
Net loss attributable to common stockholders for basic and diluted loss per share |  | $ | (37,588) |  | $ | (33,259)
Denominator: |  |  |  |  |  |
Weighted average number of common shares outstanding - basic and diluted |  |  | 59,327,713 |  |  | 22,582,687
Net loss per share attributable to common stockholders - basic and diluted |  | $ | (0.63) |  | $ | (1.47)
Schedule of potentially anti-dilutive securities excluded from calculation of diluted net loss per share |
|  | Year Ended December 31,
|  | 2020 |  | 2019
Restricted stock units to purchase common stock |  | 753,106 |  | 90,500
Options to purchase common stock |  | 6,393,853 |  | 4,024,566
Warrants to purchase common stock |  | 35,986,317 |  | 10,369,752
|  | 43,133,276 |  | 14,484,818

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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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