Notes Payable (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Notes Payable

The Company has entered into notes payable agreements with third parties, which consist of the following as of December 31, 2023 and 2022:

	December 31, 2023
(in thousands)	Contractual Maturity Date	Contractual Interest Rates	Unpaid Principal Balance		Fair Value Measurement Adjustments		Original Issue Discount and Proceeds Allocated to Warrants		Net Carrying Value
Secured SPA Notes	Various	10%-15%	$	100,052	$	(15,501)	$	(10,319)	$	74,232
Unsecured SPA Notes*	Various dates in 2029	10%-15%	13,885		1,208		(2,613)		12,480
Notes payable – China other	Due on Demand	—%	4,898				—		4,898
Auto loans	October 2026	7%	82				—		82
			$	118,917	$	(14,293)	$	(12,932)	91,692
Less: Related party notes payable									$	(542)
Less: Notes payable, current portion									(91,150)
Total: Notes payable, less current portion									$	—

* includes amounts attributed to the Unsecured Streeterville SPA

	December 31, 2022
(in thousands)	Contractual Maturity Date	Contractual Interest Rates	Unpaid Principal Balance		Fair Value Measurement Adjustments		Original Issue Discount and Proceeds Allocated to Warrants		Net Carrying Value
Secured SPA Notes	October 27, 2028	10%	$	36,622	$	264	$	(10,878)	$	26,008
Notes payable – China other	Due on Demand	—%	4,997		—		—		4,997
Auto loans	October 2026	7%	100		—		—		100
			$	41,719	$	264	$	(10,878)	31,105
Less: Notes payable, current portion									(5,097)
Total: Notes payable, less current portion									$	26,008

The Company settled the following NPAs during the year ended December 31, 2022 as follows (dollars in thousands):

	Year ended December 31, 2022
Note Name	Contractual Maturity Date	Contractual Interest Rates	Net carrying value at 12/31/2021 Balance		Fair Value Measurement Adjustments		Payment Premium		Cash Payment		Conversion into Class A Common Stock (As Restated)
March 1, 2021 Notes (1)	March 1, 2022	14%	$	56,695	$	(1,695)	$	—	$	(55,000)	$	—
August 26, 2021 Notes (1)	March 1, 2022	14%	30,924		(924)		2,065		(32,065)		—
June 2021 Notes (as restated) (2)	October 31, 2026	—%	38,981		1,019		—		—		(40,000)
Optional Notes (as restated)(2)	October 31, 2026	15%	34,682		(765)		—		—		(33,917)
			$	161,282	$	(2,365)	$	2,065	$	(87,065)	$	(73,917)

Schedule of Maturities of Long-term Debt

The future scheduled principal maturities of notes payable as of December 31, 2023 are as follows (dollars in thousands):

Due on demand	4,898
2023	—
2024	—
2025	40,728
2026	82
2027	—
Thereafter	72,543
	118,251

The future scheduled principal maturities of related party notes payable as of December 31, 2023 were as follows:

(in thousands)
Due on demand	$	8,892
2024	326
2029	666
	$	9,884