STOCK-BASED COMPENSATION - Assumptions (Details) - Employee Stock Option [Member] - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2023 |
Sep. 30, 2022 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Weighted-average assumptions relating to options granted | ||||
| Risk-free interest rate (as a percent) | 4.30% | 3.00% | 3.80% | 1.90% |
| Expected term (in years) | 6 years | 6 years 1 month 6 days | 6 years 10 months 24 days | 6 years 6 months |
| Dividend yield (as a percent) | 0.00% | 0.00% | 0.00% | 0.00% |
| Expected volatility (as a percent) | 86.70% | 80.90% | 83.40% | 70.50% |
| Additional disclosures | ||||
| Grant-date weighted-average fair value (in dollars per share) | $ 1.34 | |||
| Vesting upon achievement of corporate performance-based milestones | ||||
| Additional disclosures | ||||
| Total unrecognized compensation costs | $ 5.3 | $ 5.3 | ||
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- 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://www.xbrl.org/2003/role/disclosureRef
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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