Fair Value Measurements - Reconciliation of Financial Instruments Presented at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Fair Value Measurements [Abstract]
Repayments		$ (3,214)	$ 0
Subordinated note warrants – related party, at the beginning of the period		4,159
Subordinated note warrants – related party, at the end of the period	$ 300	300		$ 4,159
SEPA [Member]
Fair Value Measurements [Abstract]
SEPA, at the beginning of the period		790	0	0
(Gain) loss on adjustment to fair value		(790)		790
SEPA, at the end of the period	0	0		790
Senior Convertible Note [Member]
Fair Value Measurements [Abstract]
Senior convertible note, at the beginning of the period		12,555	0	0
Borrowing		0		14,250
Repayments		0		(3,748)
Conversions		(18,057)		0
Loss on adjustment to fair value		5,502		2,053
Senior convertible note, at the end of the period	0	0		12,555
Subordinated Note - Related Party [Member]
Fair Value Measurements [Abstract]
Subordinated note – related party, at the beginning of the period		4,609	0	0
Borrowing		0		5,000
Repayments		(3,214)		(1,786)
Loss on issuance of debt		0		281
Loss on adjustment to fair value		63		1,114
Subordinated note – related party, at the end of the period	1,458	1,458		4,609
Subordinated Note Warrants - Related Party [Member]
Fair Value Measurements [Abstract]
Subordinated note warrants – related party, at the beginning of the period		4,159	0	0
Loss on issuance of debt		0		2,758
(Gain) loss on adjustment to fair value		(3,859)		1,401
Subordinated note warrants – related party, at the end of the period	300	300		4,159
Series F Preferred Stock [Member]
Fair Value Measurements [Abstract]
Series F Preferred Stock embedded derivatives, at the beginning of the period		0	0	0
Embedded derivatives recognized at issuance of Series F Preferred Stock		25,479		0
Gain on adjustment to fair value		(13,883)		0
Series F Preferred Stock embedded derivatives, at the end of the period	11,596	11,596		0
Series F Preferred Stock Warrants [Member]
Fair Value Measurements [Abstract]
Series F Preferred Stock embedded derivatives, at the beginning of the period	43,700
Series F Preferred Stock embedded derivatives, at the end of the period	62,800	62,800
Series F Preferred Stock warrants, at the beginning of the period		0	$ 0	0
Issuance of Series F Preferred Stock		22,115		0
Loss on adjustment to fair value		40,661		0
Series F Preferred Stock warrants, at the end of the period	$ 62,776	$ 62,776		$ 0