STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 85	$ 166
Issuance of common stock for service		100
Research and development
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	4	4
Selling, general and administrative
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 81	162
Issuance of common stock for service		$ 2