DEBT AND RELATED PARTY DEBT - Summary of debt and related party debt (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Short-term debt:
Other current debt	$ 1,402	$ 5,764
Convertible debt	6,199		$ 5,000
Total short-term debt	7,601	5,764
Other noncurrent debt:
Convertible debt	9,560	0	10,000
Other term loans	9,142	9,780
Less: debt issuance costs	(29)	(27)	(68)
Less: current portion	(7,601)	(3,562)	(2,828)
Total other noncurrent debt	11,072	6,191	$ 2,053
Fiza Investments Limited Loans, term debt
Short-term debt:
Other current debt		2,202
Other term loans
Short-term debt:
Other current debt	$ 1,402	$ 3,562

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of long-term debt classified as other.

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Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes convertible debt and lease obligation.

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