STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 264	$ 326
Research and development
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	11	13
General and administrative
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 253	$ 313