COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - ft²	12 Months Ended
	Dec. 31, 2023	Nov. 30, 2019
Lessee, Lease, Description [Line Items]
Operating lease, Weighted average remaining lease term	2 years 3 months 18 days
Operating lease, weighted average incremental borrowing rate	7.60%
Burlingame, California
Lessee, Lease, Description [Line Items]
Rentable square feet		2,111
Lease term		36 months
Waltham Massachusetts Member
Lessee, Lease, Description [Line Items]
Lease space	20,062