A summary of the stock option activity and related information for the Plans for the three months ended March 31, 2023 is as follows: (Details) |
3 Months Ended |
|---|---|
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Mar. 31, 2023
$ / shares
shares
| |
| Share-Based Payment Arrangement [Abstract] | |
| Outstanding at beginning | shares | 2,453,031 |
| Outstanding at beginning | $ / shares | $ 28.93 |
| Weighted average remaining contractual term | 8 years 8 months 12 days |
| Grants | shares | 5,804,803 |
| Grants | $ / shares | $ 0.77 |
| Forfeitures or expirations | shares | (17,399) |
| Forfeitures or expirations | $ / shares | $ 76.48 |
| Outstanding at end | shares | 8,240,435 |
| Outstanding at end | $ / shares | $ 8.99 |
| Weighted average remaining contractual term | 9 years 5 months 19 days |
| Exercisable at end | shares | 892,008 |
| Exercisable at end | $ / shares | $ 50.68 |
| Exercisable at end | 7 years 9 months 21 days |
| X | ||||||||||
- Definition The element represents sharebased compensation arrangement by sharebased payment award options outstanding weighted average remaining contractual term1. No definition available.
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- References No definition available.
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition For presentations that combine terminations, 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 or that expired. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Weighted average price of options that were either forfeited or expired. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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