Stock Options, Warrants and Restricted Common Stock (Schedule of Restricted Stock Activity) (Details) - Restricted Stock [Member] - $ / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Number of Shares | ||
| Beginning balance | 1,524,499 | 95,939 |
| Vested | (2,435,553) | (58,772) |
| Granted | 1,544,359 | 1,542,332 |
| Forfeited | (55,000) | |
| Ending balance | 633,305 | 1,524,499 |
| Weighted Average Grant Date Fair value | ||
| Beginning balance | $ 1.37 | $ 12.49 |
| Vested | 1.34 | 7.66 |
| Granted | 1.27 | 1.41 |
| Forfeited | 14.95 | |
| Ending balance | $ 1.27 | $ 1.37 |
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of non-vested options outstanding. No definition available.
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition Number of non-vested options forfeited. No definition available.
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| X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options forfeited. No definition available.
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| X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Number of options vested. No definition available.
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| X | ||||||||||
- Definition Weighted average grant-date fair value of options vested. No definition available.
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| X | ||||||||||
- Details
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