ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Liquidity and Going Concern (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Net loss	$ (68,079)	$ (78,425)
Accumulated deficit	(334,394)		$ (266,315)
Cash and cash equivalents and investments	$ 47,400
Substantial Doubt about Going Concern, within One Year	true