SHARE-BASED COMPENSATION - Stock Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
SHARE-BASED COMPENSATION
Total stock-based compensation	$ 212	$ 259	$ 467	$ 509
Research and development
SHARE-BASED COMPENSATION
Total stock-based compensation	17	75	74	147
General and administration
SHARE-BASED COMPENSATION
Total stock-based compensation	$ 195	$ 184	$ 393	$ 362

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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