BALANCE SHEET COMPONENTS - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Depreciation and amortization expense		$ 135	$ 183
Notes Payable
Debt Instrument [Line Items]
Debt, annual interest rate	9.10%	9.10%
Debt, term	5 years