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FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Level 1 |  |
Assets: |  |
Cash and cash equivalents | $ 910 | $ 28,843
Short-term investments |  | 0
Total | 910 | 28,843
Liabilities: |  |
Derivative liabilities at fair value | 0 | 0
Warrants liability | 0 | 0
Total | 0 | 0
Level 2 |  |
Assets: |  |
Cash and cash equivalents | 0 | 0
Short-term investments |  | 0
Total | 0 | 0
Liabilities: |  |
Derivative liabilities at fair value | 0 | 0
Warrants liability | 2,675 | 32,140
Total | 2,675 | 32,140
Level 3 |  |
Assets: |  |
Cash and cash equivalents | 0 | 0
Short-term investments |  | 0
Total | 0 | 0
Liabilities: |  |
Derivative liabilities at fair value | $ 1,124 | $ 12,875
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Convertible promissory notes | Convertible promissory notes
Warrants liability | $ 522 | $ 9,010
Total | $ 1,646 | $ 21,885

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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