CONVERTIBLE NOTES AND OTHER DEBTS - Other (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Financing from French government agencies related to various government incentive programs	$ 10,580	$ 12,259
Relief loans	5,337	5,651
Term loans	0	71
Total debt obligations	15,917	17,981
Less: current portion	(4,756)	(4,992)
Long-term portion	$ 11,161	$ 12,989
TVN \| Loans Backed By French Research And Development Tax Credit Receivables
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.90%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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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No definition available.

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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Amount of long-term loans payable classified as other.

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