STOCKHOLDERS' EQUITY - Non-vested options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Shares
Non-vested, January 1, 2023	4,851,739
Granted	2,601,880	4,086,205	2,051,980
Forfeited	(974,555)
Vested	(1,273,328)
Non-vested, December 31, 2023	5,205,736	4,851,739
Weighted Average Grant Date Fair Value
Non-vested, January 1, 2023	$ 1.84
Granted	2.35
Forfeited	1.95
Vested	2.59
Non-vested, December 31, 2023	$ 1.89	$ 1.84