Notes Payable - 2024 Unsecured SPA Notes Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended
	Jul. 14, 2025 day $ / shares	Dec. 21, 2024 day $ / shares	Mar. 31, 2026 USD ($) $ / shares shares	Mar. 31, 2025 USD ($) shares	Mar. 30, 2026 $ / shares	Dec. 31, 2025 USD ($)	Jan. 28, 2025 $ / shares	Dec. 31, 2024 USD ($)
2024 Unsecured SPA Notes
Debt Instrument [Line Items]
Percent of purchaser's conversion shares			100.00%
Notes Payable
Debt Instrument [Line Items]
Notes and loans payable			$ 46,367	$ 24,674		$ 60,666		$ 49,488
Gain (loss) on fair value adjustment of debts			$ (5,212)	21,780
2024 Unsecured SPA Notes
Debt Instrument [Line Items]
Debt instrument, convertible, threshold consecutive trading days | day		1
Debt instrument, term			5 years
2024 Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate		10.00%	10.00%			10.00%
Conversion price (in dollars per share) | $ / shares		$ 1.16	$ 0.24				$ 1.16
Debt instrument, floor price (in dollars per share) | $ / shares		$ 1.05
Debt instrument, convertible, threshold consecutive trading days | day		5
Debt instrument, term			1 year
Notes and loans payable			$ 40	11,330		$ 5,818		7,032
Proceeds from debt, net of issuance costs			0	20,000
Debt conversion, converted amount			$ 6,000	$ 0
Shares issued from conversion (in shares) | shares			11,463,298	0
Gain (loss) on extinguishment of debt			$ (600)	$ 0
Gain (loss) on fair value adjustment of debts			$ (522)	6,798
2023 Unsecured Convertible Note | Notes Payable
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares			$ 1.16
Percent of purchaser's conversion shares			33.00%
Debt instrument, term			6 years
Notes and loans payable			$ 4,356	0		$ 6,668		6,716
Proceeds from debt, net of issuance costs			3,600	0
Debt conversion, converted amount			$ 7,300	$ 4,400
Shares issued from conversion (in shares) | shares			22,566,836	4,167,764
Gain (loss) on fair value adjustment of debts			$ (812)	$ 2,024
2023 Unsecured Convertible Note | Notes Payable | Class A Common Stock
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt			$ (2,500)	(2,800)
2025 July Unsecured SPA Notes
Debt Instrument [Line Items]
Notes payable bearing interest rate	10.00%
Conversion price (in dollars per share) | $ / shares	$ 1.75		$ 1.68
Debt instrument, floor price (in dollars per share) | $ / shares			$ 0.20		$ 0.20
Debt instrument, term	5 years
2025 July Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate	18.00%		10.00%			10.00%
Conversion price (in dollars per share) | $ / shares			$ 1.16
Debt instrument, convertible, threshold consecutive trading days | day	5
Notes and loans payable			$ 22,778	0		$ 26,796		$ 0
Proceeds from debt, net of issuance costs			0
Debt conversion, converted amount			$ 8,400
Shares issued from conversion (in shares) | shares			31,088,473
Gain (loss) on extinguishment of debt			$ (3,200)
Gain (loss) on fair value adjustment of debts			$ (2,473)	$ 0