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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2021
Accounting Policies [Abstract] |
Schedule of Computation of Basic and Diluted Earnings per Share | The following table sets forth the computation of basic and diluted earnings per share:
|  |  | Three Months Ended March 31,
(in thousands, except per share amounts) |  |  |  |  | 2021 |  | 2020
Numerator: |  |  |  |  |  |  |
Net loss used for basic and diluted loss per share |  |  |  |  | $ | (5,185) |  |  | $ | (4,095) |
Denominator: |  |  |  |  |  |  |
Weighted-average shares used to compute basic and diluted net loss per share |  |  |  |  | 37,164 |  |  | 9,910 |
Net loss per share attributable to common stockholders: |  |  |  |  |  |  |
Basic and diluted |  |  |  |  | $ | (0.14) |  |  | $ | (0.41) |
Schedule of Antidilutive Securities Excluded from the Calculation of Diluted Net Loss per Share | The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share because their effect was anti-dilutive:
| March 31,
| 2021 |  | 2020
Options to purchase Common Stock | 1,849,737 |  |  | 975,233 |
Warrants to purchase Common Stock | 4,490,159 |  |  | 10,516,377 |
Restricted Stock Units | — |  |  | 4,491 |
Series A Convertible Preferred Stock | 877 |  |  | 877 |
Series E Convertible Preferred Stock | 2,684,607 |  |  | — |
| 9,025,380 |  |  | 11,496,978 |

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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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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