BALANCE SHEET COMPONENTS - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Cash and cash equivalents	$ 7,278	$ 1,307
Short-term investments	2,970	$ 0
US Treasury Securities
Debt Instrument [Line Items]
Cash and cash equivalents	$ 5,000
Notes Payable
Debt Instrument [Line Items]
Debt, annual interest rate	10.40%
Debt, term	5 years