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License Agreement	6 Months Ended
	Jun. 30, 2026
Research and Development [Abstract]
License Agreement	License Agreement 3M IPC and AAHI License Agreement We have licensed rights to 3M-052, a synthetic TLR7/8 agonist, 3M-052 formulations and related technology from 3M IPC and its affiliates and AAHI. In 2021 we obtained nonexclusive rights in the field of SARS-CoV-2, and in June 2022 we modified those rights and expanded the scope of the license to include (1) SARS-CoV-2 and other infectious diseases including malaria, HIV, tuberculosis, hookworm and varicella zoster on an exclusive basis in countries other than low- and middle-income countries, and (2) oncology applications, when used in combination with our proprietary technology and/or IL-15 receptor superagonist. In consideration for the license, we agreed to make certain periodic license payments, including $2.25 million each year through June 2025. We have also agreed to make payments upon the achievement of certain regulatory milestone events and tiered royalties ranging from the low to high single-digits as a percentage of net sales. As of June 30, 2026, no such sales have been made and no such regulatory milestone events have been achieved. Beginning in April 2026, the annual minimum licensing payment is $1.0 million, which can be credited against any royalty payments due under this agreement. During the three months ended June 30, 2026 and 2025, we recorded $0.4 million and $0.6 million, respectively, in research and development expense, on the condensed consolidated statements of operations. During the six months ended June 30, 2026 and 2025, we recorded $1.0 million and $1.1 million, respectively, in research and development expense, on the condensed consolidated statements of operations.

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- Definition

The entire disclosure for research, development, and computer software activities, including contracts and arrangements to be performed for others and with federal government. Includes costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility and in-process research and development acquired in a business combination consummated during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/985-20/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 730
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483041/730-20-50-1

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