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Fair Value Measurements - Additional information (Details) - USD ($)		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Aug. 30, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment in equity securities		$ 258,000	$ 1,145,000
Assessed fair value of ordinary shares	$ 400,000	400,000
Gain on convertible note and ordinary shares		$ 300,000
Warrants outstanding	2,500,000	2,500,000
March 2024 Public Offering
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants outstanding	2,500,000	2,500,000
Imugene Convertible Note
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Aggregate principal amount	$ 13,000,000	$ 13,000,000
Debt instrument maturity date		Aug. 30, 2024
2024 Term Loan
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Final payment fee paid	$ 225,000	$ 225,000
iECURE | Equity Issuance Agreement
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment in equity securities		0
Cash | Imugene Convertible Note
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Aggregate principal amount				$ 9,750,000
Revolving Credit Facility [Member] | Seventh Amendment To Revolving Line [Member] | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Change in fair value of final payment fee		$ 100,000
Ordinary Shares, Imugene Limited
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of shares sold	72,312,592
Ordinary Shares, Imugene Limited | Imugene Convertible Note
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Aggregate principal amount				$ 3,250,000
Shares received on mature of convertible note				87,999,186

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