INCOME TAX - Schedule of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating loss carryforwards	$ 75,922	$ 72,508
Tax credit carryforwards	7,171	6,851
Section 174 expenses	14,720	7,775
Share-based compensation	2,217	1,988
Accrued expenses and other	649	651
Total gross deferred tax assets	100,679	89,773
Less: valuation allowance	(100,679)	(89,773)
Net deferred tax assets	$ 0	$ 0