STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 555	$ 711
Issuance of common stock for services	100	4
Research and development
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	17	3
General and administrative
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	538	$ 708
Issuance of common stock for services	$ 100