STOCK-BASED COMPENSATION - Schedule of Options Outstanding and Weighted Average Exercise Price (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Options outstanding, beginning balance (in shares)	12,961,238	10,776,758
Vested and exercisable, beginning balance (in shares)	6,742,890	6,188,200
Granted (in shares)	3,038,000	4,575,641
Exercised (in shares)	(146,346)	(25,518)
Forfeited or expired (in shares)	(728,346)	(2,365,643)
Options outstanding, ending balance (in shares)	15,124,546	12,961,238	10,776,758
Vested and exercisable, ending balance (in shares)	9,649,094	6,742,890	6,188,200
Weighted Average Exercise Price
Options outstanding, beginning balance (in USD per share)	$ 4.13	$ 4.97
Vested and exercisable, beginning balance (in USD per share)	5.05	5.98
Granted (in USD per share)	2.63	2.89
Exercised (in USD per share)	2.76	1.91
Forfeited or expired (in USD per share)	3.44	5.56
Options outstanding, ending balance (in USD per share)	3.87	4.13	$ 4.97
Vested and exercisable, ending balance (in USD per share)	$ 4.47	$ 5.05	$ 5.98
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Weighted Average Remaining Contractual Life, Options outstanding (in years)	6 years 10 months 24 days	7 years 5 months 1 day	6 years 25 days
Weighted Average Remaining Contractual Life, Vested and exercisable (in years)	5 years 11 months 19 days	6 years 2 months 12 days	4 years 7 months 17 days
Weighted Average Remaining Contractual Life, Granted (in years)	9 years 2 months 12 days	9 years 3 months 3 days
Aggregate Intrinsic Value, Options outstanding	$ 5,212,586	$ 62,158	$ 2,389,890
Aggregate Intrinsic Value, Vested and exercisable	$ 2,464,620	$ 61,214	$ 1,531,907