STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 88	$ 170		$ 173	$ 336
Issuance of common stock for service			$ 100
Research and development
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	4	5		8	9
Selling, general and administrative
Stock-Based Compensation (Details) [Line Items]
Total stock-based compensation expense	$ 84	165		$ 165	327
Issuance of common stock for service		$ 56			$ 56