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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

X

- Definition

Fair value portion of warrant liabilities.

+ References

No definition available.

+ Details

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X

- 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

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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

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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

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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.

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