Percentage of service cost.

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Period for breach of payment obligations.

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Period of license agreement.

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Service agreement notice period.

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Terminate license agreement period.

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The average effective interest rate during the reporting period.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Amount of principal of debt issued.

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The net result for the period of deducting operating expenses from operating revenues.

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Amount, after allowance for credit loss, of receivable classified as other and noncurrent.

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Amount of transactions with related party during the financial reporting period.

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A description of the related party transaction, including transactions to which no amounts or nominal amounts were ascribed and such other information deemed necessary to an understanding of the effects of the transactions on the financial statements. Examples of common related party transactions are, sales, purchases and transfers of realty and personal property, services received or furnished, loans and leases to and from top management and affiliates.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

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Related Party Transactions (Narrative) (Details) - USD ($)		1 Months Ended	3 Months Ended
	Feb. 12, 2024	Jan. 31, 2026	Mar. 31, 2026	Mar. 31, 2025
Related Party Transaction [Line Items]
Operating expenses			$ 15,054,000	$ (13,311,000)
MiNK Therapeutics, Inc.
Related Party Transaction [Line Items]
Repayment of debt		$ 5,200,000
Due from related parties			15,800,000
Dr. Jennifer Buell
Related Party Transaction [Line Items]
Related party expenses incurred			$ 4,000	$ 97,000
Agenus Inc.
Related Party Transaction [Line Items]
Period of license agreement			3 years
Related party transaction, description			MiNK may terminate the Assignment and License Agreement without cause upon 90 days’ prior written notice to us. Either party may terminate if there has been a material breach which has not been cured within 90 days (or 45 days for breach of payment obligations) of receiving such notice.
Terminate license agreement period			90 days
Period for breach of payment obligations			45 days
Operating expenses			$ 162,000
Agenus Inc. \| Convertible promissory note \| Purchase Agreement [Member]
Related Party Transaction [Line Items]
Convertible debt, annual interest rate	2.00%
Convertible debt, interest rate terms			Interest accrued and was not payable until converted or paid in connection with the repayment in full of the principal amount of the Note. The Note provided that MiNK would pay us, on request, the principal amount outstanding, together with any unpaid interest, on or after January 1, 2026
Convertible debt issued, principal amount	$ 5,000,000
Agenus Inc. \| New intercompany service agreement
Related Party Transaction [Line Items]
Percentage of service cost			10.00%
Service agreement notice period			60 days
Agenus Inc. \| Individual services
Related Party Transaction [Line Items]
Service agreement notice period			30 days