SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair Value of Financial Instruments (Details) - Recurring basis - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Money market funds	$ 158	$ 3,228
Total financial assets	158	3,228
Convertible debt subject to credit risk analysis	10,943
Total financial liabilities	10,943
Level 1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Money market funds	158	3,228
Total financial assets	158	$ 3,228
Level 2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Convertible debt subject to credit risk analysis	10,943
Total financial liabilities	$ 10,943

Fair value portion of asset recognized for present right to economic benefit.

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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

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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.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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