SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Going Concern, Liquidity, and Capital Reserves (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Accounting Policies [Abstract]
Net loss	$ 4,435	$ 16,918	$ 17,390	$ 11,825	$ 9,862	$ 7,515	$ 38,744	$ 29,203
Working capital, amount	22,600						22,600
Accumulated deficit	$ 102,405						102,405		$ 63,662
Net cash used in operating activities							$ 11,115	$ 24,119