BALANCE SHEET COMPONENTS - SCHEDULE OF PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
BALANCE SHEET COMPONENTS
Prepaid expenses	$ 1,114	$ 1,503
Other current assets	266	295
Prepaid research and development	260	478
Total prepaid expenses and other current assets	$ 1,640	$ 2,276