INCOME TAXES - Schedule of income tax expense (benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Current
Federal	$ 0	$ 299
State	0	39
Current federal, state and local, tax expense (benefit)	0	338
Deferred
Federal	0	0
State	0	0
Deferred federal, state and local, tax expense (benefit)	0	0
Total
Federal	0	299
State	0	39
Income tax (benefit) expense	$ 0	$ 338