Stockholders' Equity - Warrants By Exercise Price (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Number of Shares | 1,480,139 | 437,603 | 66,422 |
| Exercise Price | $ 11.05 | $ 17.90 | $ 81.15 |
| 3/10/2011 | |||
| Issuance Date | Mar. 10, 2011 | ||
| Number of Shares | 248 | ||
| Exercise Price | $ 33.60 | ||
| Expiration Date | Mar. 10, 2021 | ||
| 3/23/2016 | |||
| Issuance Date | Mar. 23, 2016 | ||
| Number of Shares | 42,308 | ||
| Exercise Price | $ 70.00 | ||
| Expiration Date | Mar. 23, 2021 | ||
| 5/7/2018 | |||
| Issuance Date | May 07, 2018 | ||
| Number of Shares | 403,025 | ||
| Exercise Price | $ 11.09 | ||
| Expiration Date | May 08, 2023 | ||
| 11/26/2018 | |||
| Issuance Date | Nov. 26, 2018 | ||
| Number of Shares | 313,358 | ||
| Exercise Price | $ 11.55 | ||
| Expiration Date | Nov. 26, 2023 | ||
| Common stock warrants | |||
| Exercise Price | $ 14.57 |
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- Definition Issuance Date of options. No definition available.
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- Definition Date the equity-based award expires, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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