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Outstanding Debt - Additional Information (Details)						1 Months Ended	3 Months Ended		9 Months Ended
Outstanding Debt - Additional Information (Details)	Sep. 08, 2026 USD ($) instrument Institution	Aug. 03, 2026 USD ($)	Jul. 29, 2026 USD ($) $ / shares shares	May 12, 2026 USD ($) installment	Mar. 04, 2026 USD ($) D	Nov. 10, 2026 shares	Sep. 30, 2026 USD ($) $ / shares shares	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) individual $ / shares shares	Sep. 30, 2025 USD ($)	Sep. 29, 2026 USD ($)	Jul. 14, 2026 USD ($)	Dec. 31, 2025 USD ($)
Outstanding Debt
Principal amount							$ 63,848,000		$ 63,848,000				$ 66,644,000
Original issue discount							946,000		946,000				1,043,000
Conversion of share settled debt into common stock								$ 353,000	2,312,000	$ 2,107,000
Loss from extinguishment of debt							$ 3,044,000	4,004,000	$ 9,980,000	15,802,000
Warrants to purchase shares \| shares							9,700,000		9,700,000
Exercise price \| $ / shares							$ 0.21		$ 0.21
Subscription agreement amount			$ 50,000,000
Subscription agreement term			24 months
Loss from issuance of debt							$ (2,174,000)	(1,611,000)	$ (2,912,000)	(2,384,000)
Subsequent events
Outstanding Debt
Debt converted to common stock (in shares) \| shares						13,500,000
Warrant shares in connection with July convertible note
Outstanding Debt
Exercise price \| $ / shares			$ 0.205
Fair value of warrants			$ 800,000
Non-Related party
Outstanding Debt
Repayment of notes payable										259,000
Extinguishment of debt upon conversion									700,000
Additional share liability recognized									400,000
Gain (loss) from debt extinguishment									3,300,000
Total cash payment							10,155,000		10,155,000				$ 9,468,000
Cash proceeds									7,000,000	7,000,000
Related party
Outstanding Debt
Repayment of notes payable		$ 200,000							230,000
Total cash payment							800,000		800,000		$ 800,000	$ 200,000
Cash proceeds									$ 1,030,000
Maximum \| Warrant shares in connection with July convertible note
Outstanding Debt
Warrants to purchase shares \| shares			9,700,000
May commercial loan \| Non-Related party
Outstanding Debt
Principal amount				$ 7,700,000
Interest rate (in percent)				8.00%
Term of debt instrument				22 months
Repayment of notes payable				$ 0
Original issue discount				$ 700,000
June commercial loan \| Non-Related party
Outstanding Debt
Number of installments for loan repayments \| installment				14
Notes \| Non-Related party
Outstanding Debt
Convertible notes shares of common stock \| shares									69.7
Conversion of share settled debt into common stock									$ 14,500,000
Cash payments									11,300,000
Accrued interest expense on debt									$ 1,700,000
One-year convertible notes
Outstanding Debt
Term of debt instrument									1 year
Two-year convertible notes
Outstanding Debt
Term of debt instrument									2 years
Convertible Notes
Outstanding Debt
Principal amount							$ 2,900,000		$ 2,900,000
Interest rate (in percent)							11.00%		11.00%
Number of shares issued during the period									$ 400,000
Accrued interest expense							$ 9,000		$ 9,000
Debt converted to common stock (in shares) \| shares									2,000,000
Convertible Notes \| Subsequent events
Outstanding Debt
Debt converted to common stock (in shares) \| shares						36,300,000
Convertible Notes \| Minimum
Outstanding Debt
Conversion price \| $ / shares							$ 0.15		$ 0.15
Debt instrument converted price \| $ / shares									0.18
Convertible Notes \| Maximum
Outstanding Debt
Conversion price \| $ / shares							$ 0.23		0.23
Debt instrument converted price \| $ / shares									$ 0.23
Modified convertible note
Outstanding Debt
Original principal amount increased							$ 83,000		$ 83,000
2026 One-Year Convertible Notes
Outstanding Debt
Principal amount							$ 3,500,000		$ 3,500,000
Interest rate (in percent)							11.00%		11.00%
Term of debt instrument									1 year
Number of investors \| individual									2
2026 One-Year Convertible Notes \| Minimum
Outstanding Debt
Conversion price \| $ / shares							$ 0.2		$ 0.2
2026 One-Year Convertible Notes \| Maximum
Outstanding Debt
Conversion price \| $ / shares							$ 0.25		$ 0.25
Additional Convertible Note
Outstanding Debt
Principal amount							$ 3,300,000		$ 3,300,000
Term of debt instrument									2 years
Conversion price \| $ / shares							$ 0.25		$ 0.25
Debt instrument									18 months
March Convertible Notes
Outstanding Debt
Principal amount					$ 5,000,000
Interest rate (in percent)					9.00%
Term of debt instrument					24 months
Debt Instrument convertible conversion price (percentage)					86.00%
Threshold number of consecutive trading days after notice of conversion \| D					10
Debt instrument convertible limit on conversion (percentage)					20.00%
Number of rolling trading days \| D					20
Issuance costs					$ 500,000
Convertible Notes at Fair Value
Outstanding Debt
Gain (loss) from debt extinguishment									$ (6,500,000)
Conversion price \| $ / shares							$ 0.18		$ 0.18
Number of shares issued during the period									$ 21,500,000
Accrued interest expense							$ 3,800,000		$ 3,800,000
Debt converted to common stock (in shares) \| shares									117,400,000
Convertible notes at fair value					16,200,000
Loss from issuance of debt					$ 2,100,000
Interest expense related to outstanding debt totaled							2,500,000	2,600,000	$ 6,400,000	6,000,000
Amortization of debt discount							$ 600,000	$ 400,000	1,000,000	$ 1,300,000
July Convertible Notes
Outstanding Debt
Principal amount			$ 4,900,000
Interest rate (in percent)			0.00%
Term of debt instrument			12 months
Original issue discount (in percent)			5.00%
September Convertible Notes
Outstanding Debt
Principal amount	$ 600,000
Interest rate (in percent)	5.00%
Term of debt instrument	12 months
Number of debt instruments issued \| instrument	2
Number of installments for loan repayments \| Institution	2
Original issue discount	$ 50,000
Issuance costs	45,000
Cash proceeds	$ 500,000
Trading price (in percent)	85.00%
Amended \| Modified convertible note
Outstanding Debt
Loss from extinguishment of debt									$ (100,000)