RELATED PARTY TRANSACTIONS (Tables)

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The following table summarizes the expenses incurred for the three and nine months ended September 30, 2020 and 2021:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Research and development	$	1	$	1	$	2	$	11
Selling, general, and administrative	1		—		2		1
Total	$	2	$	1	$	4	$	12