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STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 182	$ 90	$ 205	$ 181
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	177	87	198	175
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 5	$ 3	$ 7	$ 6

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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