SHARE-BASED COMPENSATION - Summary of Estimated Fair Value of Stock Options Using the Black-Scholes Option Pricing Model and Valuation Model (Details) - $ / shares |
6 Months Ended | |
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Jun. 30, 2026 |
Jun. 30, 2025 |
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| Market and Service-based Options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Fair value of common stock | $ 0.81 | |
| Weighted average expected term (years) | 4 years 7 months 6 days | |
| Weighted average expected volatility | 91.00% | |
| Risk-free interest rate | 4.40% | |
| Black-Scholes Option Pricing Model | Service-based Options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Fair value of common stock | $ 1.41 | $ 0.54 |
| Weighted average expected term (years) | 6 years | 6 years |
| Weighted average expected volatility | 92.30% | 86.80% |
| Risk-free interest rate | 3.80% | 4.10% |
| Dividend yield | 0.00% | 0.00% |
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- Definition Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 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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- Definition Rate of weighted-average expected volatility for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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. 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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