STOCK-BASED COMPENSATION - SCHEDULE OF OPTION ACTIVITY UNDER 2021 PLAN AND 2018 PLAN (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
STOCK-BASED COMPENSATION
Options Outstanding, beginning balance	4,110,219
Weighted-Average Exercise Price Outstanding, beginning balance	$ 9.23
Weighted- Average Remaining Contractual Term, Outstanding	8 years 4 months 13 days	8 years 5 months 15 days
Aggregate Intrinsic Value Outstanding, beginning balance	$ 82,490
Options Granted	1,461,001
Weighted-Average Exercise Price, Granted	$ 23.48
Options Exercised	(247,499)
Weighted-Average Exercise Price, Exercised	$ 2.64
Options, Cancelled/Forfeited	(86,889)
Weighted-Average Exercise Price, Cancelled/Forfeited	$ 9.62
Options Outstanding, ending balance	5,236,832	4,110,219
Weighted-Average Exercise Price Outstanding, ending balance	$ 13.51	$ 9.23
Aggregate Intrinsic Value Outstanding, ending balance	$ 17,749	$ 82,490
Options, Vested and exercisable	1,879,188
Weighted-Average Exercise Price, Vested and exercisable	$ 13.51
Weighted- Average Remaining Contractual Term, Vested and exercisable	8 years 4 months 13 days
Aggregate Intrinsic Value, Vested and exercisable	$ 8,286
Options, Vested and expected to vest	5,236,832
Weighted-Average Exercise Price, Vested and expected to vest	$ 10.57
Weighted- Average Remaining Contractual Term, Vested and expected to vest	7 years 11 months 26 days
Aggregate Intrinsic Value, Vested and expected to vest	$ 17,749