SUPPLEMENTAL FINANCIAL INFORMATION - Summary of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Supplemental Financial Information [Abstract]
Compensation and other employee liabilities	$ 4,207	$ 3,692
Research and development	1,796	2,186
Interest	249	249
Operating lease liability, current	133	110
Operating lease liability, noncurrent	150	284
Operating lease liability	283	394
Other, current	230	212
Other, noncurrent	0	0
Other	230	212
Accrued expenses and other current liabilities	$ 6,615	$ 6,449
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Other liabilities, long-term	$ 150	$ 284
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other liabilities, long-term	Other liabilities, long-term
Total	$ 6,765	$ 6,733