Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2024

Related Party Transactions [Abstract]

Schedule of Debt

The tables below summarize the related party note payable agreements as of December 31, 2024 and December 31, 2023, providing details on contractual maturity dates, contractual interest rates, and net carrying values.

	December 31, 2024
(in thousands)	Contractual Maturity Date	Contractual Interest Rates	Net Carrying Value
Unsecured Convertible Note	April 2024 (1)	4.27%	$	1,364
Notes Payable — China	April 2027	18.0%	4,382
Notes Payable on Demand — China	Due on Demand	—%	417
FFGP Note	Various 2024 (1)	4.27%	1,576
Convertible FFGP Note	'May 2024 (1)	4.27%	250
Other Notes	Due on Demand	12.0%	75
			$	8,064
Related party notes payable, current			$	5,310
Related party notes payable, long-term			$	2,754
_______________
(1) The term was extended upon receipt of waivers of enforcement rights and remedies under the loan agreements, as described below, with the expected settlement in 2025.

	December 31, 2023
(in thousands)	Contractual Maturity Date	Contractual Interest Rates			Net Carrying Value
2023 Unsecured SPA Notes	August 2029	10%	-	15%	$	542
Notes Payable — China	December 2023	18.0%			5,103
Notes Payable on Demand — China	Due on Demand	—%			3,789
FFGP Note	Various	5.27%			326
					$	9,760
Related party notes payable, current					$	9,760
Related party notes payable, long-term					$	—

Schedule of Notes Payable

The Company has entered into notes payable agreements with third parties. The tables below summarize these agreements as of December 31, 2024, and 2023, providing details on contractual maturity dates, contractual interest rates, unpaid principal balances, fair value adjustments, original issue discounts, including proceeds allocated to warrants, and net carrying values.

	December 31, 2024
(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%	$	3,118	$	2,651	$	(312)	$	5,457
2023 Unsecured SPA Notes	Various dates in 2029	10	%	-	15%	4,380		2,844		(508)		6,716
Junior Secured SPA Notes	September 2029	10%				28,840		13,163		(15,944)		26,059
2024 Unsecured SPA Notes	December 2029	10%				10,015		8,741		(11,724)		7,032
Notes payable – China other	Due on Demand	—%				4,173		—		—		4,173
Auto loans	October 2026	7%				51		—		—		51
						$	50,577	$	27,399	$	(28,488)	$	49,488
Notes payable, current portion												$	4,224
Notes payable, long-term portion												$	45,264

	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
2023 Unsecured SPA Notes	Various dates in 2029	10	%	-	15%	13,219		1,262		(2,543)		11,938		(1)
Notes payable – China other	Due on Demand	—%				4,898		—		—		4,898
Auto loans	October 2026	7%				82		—		—		82
						$	118,251	$	(14,239)	$	(12,862)	$	91,150
Notes payable, current portion												$	91,150
Notes payable, long-term portion												$	—
_____________________
(1) The 2023 Unsecured SPA Notes line item values above were updated to exclude related party balance of $542 thousand for comparability of the presentation with the current year. (See Note 8, Related Party Transactions.)

The future scheduled principal maturities of Related party notes payable as of December 31, 2024, are as follows:

(in thousands)
Due on demand	$	492
2025	4,954
2026	2,003
2027	751
Thereafter	—
	$	8,200