Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|---|
Feb. 12, 2024 |
Jan. 31, 2026 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Related Party Transaction [Line Items] | ||||||
| Operating expenses | $ 11,293 | $ (16,711) | $ 26,347 | $ (30,022) | ||
| MiNK Therapeutics, Inc. | ||||||
| Related Party Transaction [Line Items] | ||||||
| Repayment of debt | $ 5,200 | |||||
| Due from related parties | 16,100 | 16,100 | ||||
| Dr. Jennifer Buell | ||||||
| Related Party Transaction [Line Items] | ||||||
| Related party expenses incurred | 11 | $ 66 | $ 15 | $ 162 | ||
| 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 | $ 184 | $ 346 | ||||
| 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 | |||||
| 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 | |||||
| X | ||||||||||
- Definition Percentage of service cost. No definition available.
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- Definition Period for breach of payment obligations. No definition available.
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- Definition Period of license agreement. No definition available.
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- Definition Service agreement notice period. No definition available.
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- Definition Terminate license agreement period. No definition available.
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- Definition The average effective interest rate during the reporting period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of principal of debt issued. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after allowance for credit loss, of receivable classified as other and noncurrent. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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