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Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Antidilutive Securities Excluded from the Calculation of Basic and Diluted Loss Per Share | Shares used in calculating diluted net loss per common share exclude as anti-dilutive the following share equivalents:
| December 31,
| 2020 |  | 2019 |  |
Options to purchase Common Stock | 1,860,507 |  |  | 1,015,418 |  |  |
Warrants to purchase Common Stock | 5,260,992 |  |  | 10,589,482 |  |  |
Restricted Stock Units | 491 |  |  | 11,301 |  |  |
Series A Convertible Preferred Stock | 877 |  |  | 877 |  |  |
Series E Convertible Preferred Stock | 2,684,607 |  |  | — |  |  |
| 9,807,474 |  |  | 11,617,078 |  |  |

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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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