Schedule of Stock Option Activity (Details) - Stock Options [Member] |
3 Months Ended |
|---|---|
|
Mar. 31, 2021
shares
| |
| Option Indexed to Issuer's Equity [Line Items] | |
| Number of Options, Outstanding at Beginning | 22,551,000 |
| Number of Options, Granted | 4,557,000 |
| Number of Options, Exercised | (853,000) |
| Number of Options, Forfeited | (2,681,000) |
| Number of Options, Forfeited | |
| Number of Options, Expired | (684,000) |
| Number of Options, Outstanding at Ending | 22,890,000 |
| X | ||||||||||
- Definition Share Based Compensation Arrangement by Share Based Payment Award Options Cancelled in Period. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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