INCOME TAXES - Reconciliation of the statutory federal income tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Amount
Federal tax benefit as statutory rates	$ (72,044)	$ (59,305)
Stock-based compensation	4,073	731
Other permanent differences	57	77
Other	(4,515)	(1,947)
Rate difference	(8,250)
State & Local Taxes	(15,936)	(672)
Change in valuation allowance	96,615	61,115
Total tax benefit	$ 0	$ 0
Rates
Federal tax benefit as statutory rates	(21.00%)	(21.00%)
Stock-based compensation, rates	(1.20%)	0.20%
Other, rates	(1.30%)	0.70%
Rate difference, rates	2.40%
State & Local Taxes, rates	4.60%	(0.10%)
Change in valuation allowance, rate	(28.20%)	21.64%
Total tax benefit, rate	0.00%	0.00%