Unaudited Condensed Consolidated Statements of Stockholders’ Equity (Deficit) - USD ($) $ in Thousands	Total	Preferred Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total Stockholders’ Deficit Attributable to the Company	Noncontrolling Interests	Class A Common Stock Common Stock	Class B Common Stock Common Stock
Beginning balance (in shares) at Dec. 31, 2024								65,919,127	6,667
Beginning balance at Dec. 31, 2024	$ 114,967		$ 4,421,563	$ 7,744	$ (4,314,346)			$ 6	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of notes payable and accrued interest into Class A Common Stock (in shares)								20,081,506
Conversion of notes payable and accrued interest into Class A Common Stock	32,673		32,671					$ 2
Settlement of HSL s.r.l. lawsuit with issuance of Class A Common Stock (in shares)								774,183
Settlement of HSL s.r.l. lawsuit with issuance of Class A Common Stock	1,185		1,185
Release Chongqing accrued interest and penalties	654		654
Stock-based compensation	301		301
Issuance of shares for RSU vesting net of tax withholdings (in shares)								11,932
Foreign currency translation adjustment	306			306
Net loss	(10,278)				(10,278)
Ending balance (in shares) at Mar. 31, 2025								86,786,748	6,667
Ending balance at Mar. 31, 2025	139,808		4,456,374	8,050	(4,324,624)			$ 8	$ 0
Beginning balance (in shares) at Dec. 31, 2025		7,184,760						199,130,727	6,667
Beginning balance at Dec. 31, 2025	7,759	$ 0	4,673,866	3,817	(4,705,042)	$ (27,338)	$ 35,097	$ 21	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of notes payable and accrued interest into Class A Common Stock (in shares)		(1,056,382)						82,324,388
Conversion of notes payable and accrued interest into Class A Common Stock	33,748		33,740			33,748		$ 8
Issuance of Class A common stock to vendor (in shares)								954,545
Issuance of Class A common stock to vendor	1,050		1,050			1,050
Release Chongqing accrued interest and penalties	20,196		20,196			20,196
Stock-based compensation	49		49			49
Issuance of shares for RSU vesting net of tax withholdings (in shares)								35
Foreign currency translation adjustment	(1,244)			(1,244)		(1,244)
Net loss	(42,317)				(38,856)	(38,856)	(3,461)
Ending balance (in shares) at Mar. 31, 2026		6,128,378						282,409,695	6,667
Ending balance at Mar. 31, 2026	$ 19,241	$ 0	$ 4,728,901	$ 2,573	$ (4,743,898)	$ (12,395)	$ 31,636	$ 29	$ 0