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Stockholders' Equity - Schedule of Common Stock Warrants Outstanding (Details) - $ / shares | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Feb. 28, 2018
Class of Warrant or Right [Line Items] |  |
Shares underlying outstanding warrants (in shares) | 1,908,643 |
Exercise price (in usd per share) |  | $ 3.00
Warrants Expiring on December 1, 2021 |  |
Class of Warrant or Right [Line Items] |  |
Shares underlying outstanding warrants (in shares) | 2,906 |
Exercise price (in usd per share) | $ 120.40 |
Expiration Date | Dec. 01, 2021 |
Warrants Expiring on December 6, 2021 |  |
Class of Warrant or Right [Line Items] |  |
Shares underlying outstanding warrants (in shares) | 3,737 |
Exercise price (in usd per share) | $ 120.40 |
Expiration Date | Dec. 06, 2021 |
Warrants Expiring on April 4, 2026 |  |
Class of Warrant or Right [Line Items] |  |
Shares underlying outstanding warrants (in shares) | 6,500 |
Exercise price (in usd per share) | $ 10.00 |
Expiration Date | Apr. 04, 2026 |
Warrants Expiring on February 15, 2023 |  |
Class of Warrant or Right [Line Items] |  |
Shares underlying outstanding warrants (in shares) | 1,895,500 |
Exercise price (in usd per share) | $ 0.96 |
Expiration Date | Feb. 15, 2023 |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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