SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Liabilities
Senior Convertible Notes	$ 63,158
Derivative liability		$ 8,871
Money Market
Assets
Cash equivalents – money market	27,825	29,839
Level 1
Liabilities
Senior Convertible Notes	0
Derivative liability		0
Level 1 | Money Market
Assets
Cash equivalents – money market	27,825	29,839
Level 2
Liabilities
Senior Convertible Notes	0
Derivative liability		0
Level 2 | Money Market
Assets
Cash equivalents – money market	0	0
Level 3
Liabilities
Senior Convertible Notes	63,158
Derivative liability		8,871
Level 3 | Money Market
Assets
Cash equivalents – money market	$ 0	$ 0