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Fair Value Measurements - Inputs (Details) shares in Thousands					12 Months Ended
	Mar. 18, 2025 USD ($)	Nov. 25, 2024 USD ($) $ / shares Y shares	Nov. 21, 2024 USD ($) $ / shares shares	Dec. 05, 2023 USD ($) Y $ / shares shares	Dec. 31, 2025 USD ($) $ / shares Y shares	Dec. 31, 2024 USD ($)	Mar. 03, 2025 USD ($) $ / shares	Mar. 25, 2024 USD ($) Y $ / shares	Mar. 20, 2024 USD ($) $ / shares Y shares	Apr. 19, 2022 USD ($) Y $ / shares shares
Fair value inputs
Warrant derivative liability \| $					$ 1,790,000	$ 6,633,000
Gain (loss) on derivatives \| $					$ (3,505,000)	20,181,000
Repricing of stock purchase warrants \| $						59,000
Warrants outstanding (in shares) \| shares					3,179
Credit Agreement
Fair value inputs
Fair value debt \| $					$ 107,850,000
Equity Investment Rights
Fair value inputs
Increase (decrease) carrying value \| $		$ (1,263,000)				(1,263,000)
Equity Investment Rights \| Strike price
Fair value inputs
Derivative liability input					1.10
Equity Investment Rights \| Volatility (annual)
Fair value inputs
Derivative liability input					1.123
Equity Investment Rights \| Term
Fair value inputs
Derivative liability input \| Y					1.3
Equity Investment Rights \| Probability of exercise
Fair value inputs
Derivative liability input					0.91
Equity Investment Rights \| Estimated premium to 30-day average
Fair value inputs
Derivative liability input					0.24
Equity Investment Rights \| Discount rate
Fair value inputs
Derivative liability input					0.0426
OnkosXcel Warrants
Fair value inputs
Warrants to purchase common stock (in shares) \| shares										175
Warrants outstanding value \| $					$ 0
March 2025 Option Warrants
Fair value inputs
Increase (decrease) carrying value \| $	$ 369,000
Warrant derivative liability \| $					0		$ 369,000
Gain (loss) on derivatives \| $					$ 369,000
March 2025 Option Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares					3.5
March 2025 Option Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares					2.7
March 2025 Option Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input					0.392
March 2025 Option Warrants \| Term
Fair value inputs
Derivative liability input \| $					0.04
March 2025 Option Warrants \| Risk-free rate
Fair value inputs
Derivative liability input					0.0439
March 2025 Accompanying Warrants
Fair value inputs
Fair value warrant classified as equity \| $					$ 354,000
Exercise price (in dollars per share) \| $ / shares					$ 4.2
Gain (loss) on derivatives \| $					$ 849,000
Warrants outstanding (in shares) \| shares					1,700
March 2025 Accompanying Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares					4.2		4.2
March 2025 Accompanying Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares					1.6		2.7
March 2025 Accompanying Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input					0.4448		0.392
March 2025 Accompanying Warrants \| Term
Fair value inputs
Derivative liability input \| $					4.2		5
March 2025 Accompanying Warrants \| Risk-free rate
Fair value inputs
Derivative liability input					0.0366		0.0401
Closing Date Warrants
Fair value inputs
Fair value warrant classified as equity \| $			$ 164,000	$ 802,000					$ 105,000	$ 548,000
Exercise price (in dollars per share) \| $ / shares			$ 7.68	$ 58.3232	$ 7.68				$ 49.1568	$ 320.64
Warrants to purchase common stock (in shares) \| shares										17
Repricing of stock purchase warrants \| $			$ 59,000	$ 254,000
Warrants outstanding value \| $										$ 3,245,000
Warrants outstanding (in shares) \| shares					17
Closing Date Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares										320.64
Closing Date Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares										238.88
Closing Date Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input										0.95
Closing Date Warrants \| Term
Fair value inputs
Derivative liability input \| Y										7
Closing Date Warrants \| Risk-free rate
Fair value inputs
Derivative liability input										0.0295
2023 Warrants
Fair value inputs
Fair value warrant classified as equity \| $				$ 200,000
Exercise price (in dollars per share) \| $ / shares				$ 58.3232	$ 7.68
Warrants to purchase common stock (in shares) \| shares				4
Warrants outstanding (in shares) \| shares					4
2023 Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares				58.3232
2023 Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares				59.36
2023 Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input				0.99
2023 Warrants \| Term
Fair value inputs
Derivative liability input \| Y				5.4
2023 Warrants \| Risk-free rate
Fair value inputs
Derivative liability input				0.0414
2024 Warrants
Fair value inputs
Fair value warrant classified as equity \| $									$ 224,000
Exercise price (in dollars per share) \| $ / shares									$ 49.1568
Warrants to purchase common stock (in shares) \| shares									6
2024 Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares									49.1568
2024 Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares									44.48
2024 Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input									1.122
2024 Warrants \| Term
Fair value inputs
Derivative liability input \| Y									5
2024 Warrants \| Risk-free rate
Fair value inputs
Derivative liability input									0.0425
March 2024 Accompanying Warrants
Fair value inputs
Fair value warrant classified as equity \| $					$ 502,000			$ 19,347,000
Exercise price (in dollars per share) \| $ / shares			$ 9.136					$ 51.2
Warrant derivative liability \| $					502,000
Gain (loss) on derivatives \| $					$ 1,818,000	17,027,000
Fair value adjustment warrants \| $		$ 1,000,000	$ 1,000,000			1,000,000
Warrants outstanding (in shares) \| shares		539
March 2024 Accompanying Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares					1.6			51.2
March 2024 Accompanying Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares								44.96
March 2024 Accompanying Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input					1.398			1.122
March 2024 Accompanying Warrants \| Term
Fair value inputs
Derivative liability input \| Y					3.2			5
March 2024 Accompanying Warrants \| Risk-free rate
Fair value inputs
Derivative liability input					0.0357			0.042
March 2024 Accompanying Warrants, Strike Price Amended
Fair value inputs
Exercise price (in dollars per share) \| $ / shares					$ 9.136
Warrants outstanding (in shares) \| shares		534	534		534
March 2024 Accompanying Warrants, Strike Price Amended \| Strike price
Fair value inputs
Derivative liability input \| $ / shares					9.136
Exercise price (in dollars per share) \| $ / shares		$ 9.136
March 2024 Accompanying Warrants, Strike Price Not Amended
Fair value inputs
Exercise price (in dollars per share) \| $ / shares					$ 51.2
Warrants outstanding (in shares) \| shares					5
March 2024 Accompanying Warrants, Strike Price Not Amended \| Strike price
Fair value inputs
Derivative liability input \| $ / shares					51.2
November 2024 Accompanying Warrants
Fair value inputs
Fair value warrant classified as equity \| $		$ 5,562,000			$ 934,000
Warrant derivative liability \| $		$ 5,562,000			934,000
Gain (loss) on derivatives \| $					$ 3,339,000	$ 1,289,000
November 2024 Accompanying Warrants \| Strike price
Fair value inputs
Derivative liability input \| $ / shares		7.68
Exercise price (in dollars per share) \| $ / shares					$ 7.68
November 2024 Accompanying Warrants \| Share price input
Fair value inputs
Derivative liability input \| $ / shares		7.52			1.6
November 2024 Accompanying Warrants \| Volatility (annual)
Fair value inputs
Derivative liability input		1.125			1.317
November 2024 Accompanying Warrants \| Term
Fair value inputs
Derivative liability input \| Y		5			3.9
November 2024 Accompanying Warrants \| Risk-free rate
Fair value inputs
Derivative liability input		0.042			0.0364