Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenues	$ 1,678	$ 323
Cost of revenues	819	441
Gross profit (loss)	859	(118)
Operating expenses:
Research and development	19,925	28,858
Selling, general and administrative	45,419	61,701
Total operating expenses	65,344	90,559
Operating loss	(64,485)	(90,677)
Other income (expense):
Other income	4,040	1,482
Interest expense	(2,358)	(1,484)
Change in estimated fair value of earn-out liabilities	3,363	82,734
Total other income	5,045	82,732
Loss before income taxes	(59,440)	(7,945)
Income tax expense	(53)	(19)
Net loss	(59,493)	(7,964)
Unrealized gain (loss) on short-term investments	21	(21)
Comprehensive loss	(59,472)	(7,985)
Net loss	(59,493)	(7,964)
Dividends on Series D convertible preferred stock		(7,383)
Redemption value of Series D convertible preferred stock	0	(3,692)
Net loss attributable to common stockholders - basic	$ (59,493)	$ (19,039)
Net loss per share attributable to common stockholders - basic	$ (0.76)	$ (0.64)
Net loss per share attributable to common stockholders - diluted	$ (0.76)	$ (0.64)
Weighted average common stock outstanding - basic	78,197,107	29,878,041
Weighted average common shares outstanding - diluted	78,197,107	29,878,041