8. Stockholders' Equity (Details Narrative) - $ / shares |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
Dec. 31, 2020 |
|
| Colllaboration Warrants [Member] | |||
| Warrants outstanding | 30,307 | 30,307 | |
| Warrants weighted average exercise price | $ 124.74 | $ 124.74 | |
| Warrant expiration dates | April 2021 through May 2021 | ||
| Warrants granted | 0 | 0 | |
| Warrants exercised | 0 | 0 | |
| Debt and Equity Financing Warrants [Member] | |||
| Warrants outstanding | 347,505 | 378,453 | |
| Warrants weighted average exercise price | $ 36.74 | $ 36.74 | |
| Warrant expiration dates | July 2021 through September 2026 | ||
| Warrants exercised | 1,485 | 200,000 | |
| Warrants expired | 29,000 | 0 | |
| X | ||||||||||
- Definition Number of warrants or rights outstanding. No definition available.
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| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Other increase (decrease) in number of shares reserved for issuance under non-option equity instrument agreements that is not separately disclosed. No definition available.
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| X | ||||||||||
- Definition Warrants weighted average exercise price No definition available.
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| X | ||||||||||
- Definition Warrant expiration dates No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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