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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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-Topic 320
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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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General (Details) $ in Thousands	3 Months Ended
General (Details) $ in Thousands	Mar. 31, 2025 USD ($) designation patient site	Mar. 31, 2024 USD ($)	Apr. 28, 2025 patient site	Dec. 31, 2024 USD ($)
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Cash cash equivalents and restricted cash	$ 12,800			$ 32,400
Estimated Fair Value	46,120			$ 20,821
Net cash provided by (used in) operating activities	$ (2,203)	$ 9,584
HEPZATO KIT
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Number of orphan drug designations granted by FDA \| designation	6
Clinical trial, number of patients \| patient	90
Clinical trial, number of sites \| site	20
HEPZATO KIT \| Subsequent Event
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Clinical trial, number of patients \| patient			90
Clinical trial, number of sites \| site			20
HEPZATO KIT, Melphalan
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Number of orphan drug designations granted by FDA \| designation	5
HEPZATO KIT, Doxorubicin
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Number of orphan drug designations granted by FDA \| designation	1
Accounts payable, accrued expenses, current lease liabilities and current medac settlement
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Current capital commitments	$ 5,300
Lease liabilities
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Noncurrent capital commitments	1,200
Settlement of litigation with medac
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Noncurrent capital commitments	$ 900