Consolidated Statements of Operations - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Revenues		$ 13,825	$ 12,405
Cost of sales (exclusive of items shown separately below)		6,714	7,563
Gross profit		7,111	4,842
Operating expenses:
Engineering services		54,212	29,599
General and administrative costs		48,332	35,636
Research and development costs		45,620	23,440
Depreciation and amortization		4,711	2,913
Total operating expenses		152,875	91,588
Other income:
Gain on remeasurement of warrant liabilities		19,114	15,766
Other income (expense), net		24,154	(1,950)
Total other income, net		43,268	13,816
Loss before income tax expense		(102,496)	(72,930)
Income tax expense		617	331
Net loss before allocation to noncontrolling interest		(103,113)	(73,261)
Net loss attributable to noncontrolling interest		(71,473)	(42,708)
Net loss attributable to common stockholders		$ (31,640)	$ (30,553)
Common Class A [Member]
Net loss per share attributable to holders of Class A Common Stock
Basic	[1]	$ (0.58)	$ (0.37)
Diluted	[1]	$ (0.58)	$ (0.37)
Weighted average number of Class A Common Stock outstanding
Weighted-average number of Class A Common Stock outstanding - basic	[1]	54,437,073	51,729,785
Weighted-average number of Class A Common Stock outstanding - diluted	[1]	54,437,073	51,729,785

[1] Net loss per share information for the year ended December 31, 2021 did not include the loss prior to the date of Business Combination. Refer to Note 18: Net Loss Per Share for further information.