STOCK-BASED COMPENSATION - Assumptions (Details) - Employee stock options - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | |
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Mar. 31, 2022 |
Mar. 31, 2021 |
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| Weighted-average assumptions relating to options granted | ||
| Risk-free interest rate (as a percent) | 1.70% | 1.00% |
| Expected term (in years) | 6 years 4 months 24 days | 6 years 6 months |
| Dividend yield (as a percent) | 0.00% | 0.00% |
| Expected volatility (as a percent) | 70.00% | 70.60% |
| Additional disclosures | ||
| Grant-date weighted-average fair value (in dollars per share) | $ 1.58 | |
| Vesting upon achievement of corporate performance-based milestones | ||
| Additional disclosures | ||
| Total unrecognized compensation costs | $ 4.7 | |
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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