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CREDIT RISK AND CONCENTRATION - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Concentration Risk |  |  |  |  |
Cash and cash equivalents |  |  | $ 43,913 | $ 49,968 |
Increase or decrease in interest rates of short-term investments that will not significantly affect the fair value of investment portfolio (as a percent) |  |  | 10.00% |  |
Net sales | [1] |  | $ 10,878 | 15,753 | $ 14,052
China |  |  |  |  |
Concentration Risk |  |  |  |  |
Net sales |  |  | 2,084 | 2,577 | $ 1,735
Cash and Cash Equivalents | Countries Other than US | Credit Concentration Risk |  |  |  |  |
Concentration Risk |  |  |  |  |
Cash and cash equivalents |  |  | $ 38,600 | $ 3,500 |
Accounts Receivable | Customer Concentration Risk | Customer A |  |  |  |  |
Concentration Risk |  |  |  |  |
Concentration of risk (as a percent) |  |  | 0.00% | 0.00% |
Accounts Receivable | Customer Concentration Risk | Customer B |  |  |  |  |
Concentration Risk |  |  |  |  |
Concentration of risk (as a percent) |  |  | 78.00% | 79.00% |
Net sales |  |  | $ 6,400 |  |
Accounts Receivable | Customer Concentration Risk | Customer B | Subsequent Event |  |  |  |  |
Concentration Risk |  |  |  |  |
Net sales |  | $ 900 |  |  |
Subsidiaries | China |  |  |  |  |
Concentration Risk |  |  |  |  |
Cash and cash equivalents |  |  | 17,200 | $ 15,300 |
Subsidiaries | Cash and Cash Equivalents | China | Credit Concentration Risk |  |  |  |  |
Concentration Risk |  |  |  |  |
Cash and cash equivalents |  |  | $ 17,200 | $ 15,300 |
[1] | Revenue recognized for the years ended December 31, 2024, 2023 and 2022 that was included in deferred revenue (including current and non-current) and customer advances as of the beginning of each year was $0.1 m illion, $0.1 million and $0.3 million, respectively.

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