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FAIR VALUE MEASUREMENTS - FV hierarchy (Details) - Fair Value, Recurring - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial assets or liabilities measured at fair value on a recurring basis |  |
Cash and cash equivalents | $ 146,484 | $ 49,898
Total financial assets measured at fair value on a recurring basis | 146,484 | 49,898
Warrant liabilities - Common Warrants | 64,937 | 53,725
Total financial liabilities measured at fair value on a recurring basis | 64,937 | 53,725
Level 1 |  |
Financial assets or liabilities measured at fair value on a recurring basis |  |
Cash and cash equivalents | 146,484 | 49,898
Total financial assets measured at fair value on a recurring basis | 146,484 | 49,898
Level 3 |  |
Financial assets or liabilities measured at fair value on a recurring basis |  |
Warrant liabilities - Common Warrants | 64,937 | 53,725
Total financial liabilities measured at fair value on a recurring basis | 64,937 | 53,725
Cash |  |
Financial assets or liabilities measured at fair value on a recurring basis |  |
Cash and cash equivalents | 121,473 | 24,887
Cash | Level 1 |  |
Financial assets or liabilities measured at fair value on a recurring basis |  |
Cash and cash equivalents | 121,473 | 24,887
Money market funds |  |
Financial assets or liabilities measured at fair value on a recurring basis |  |
Cash and cash equivalents | 25,011 | 25,011
Money market funds | Level 1 |  |
Financial assets or liabilities measured at fair value on a recurring basis |  |
Cash and cash equivalents | $ 25,011 | $ 25,011

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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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 No definition available. + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
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- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. + References No definition available. + Details
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