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License and Collaboration Agreements (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 31, 2023 | Dec. 31, 2022 | Jan. 31, 2019 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Agreement initial term |  |  | 5 years |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | $ 11,100 |  | $ 11,100 |  |
Original celltrion agreement |  |  |  |  |  | 87.50% |  | 87.50% |  |
Amended celltrion agreement |  |  |  |  |  | 250.00% |  | 250.00% |  |
Percentage of reimbursement |  |  |  |  |  |  |  | 60.00% |  |
Revenue recognized |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  |  |  |  |  | $ 53 |
Research and development services |  |  |  |  |  |  |  |  |  | $ 64
Performance obligation |  |  |  |  |  |  |  | $ 0 | 64 |
Intellectual Property [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Research and development services |  |  |  |  |  |  |  | 1,936 |  |
First Milestone [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments | $ 2,000 | $ 2,000 |  |  |  |  |  | 2,000 |  | $ 2,000
ABP-100 Collaboration and License Agreement [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Royalty payment |  |  |  |  |  |  |  |  |  |
Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | 70,000 |  | 70,000 |  |
Royalties amount |  |  |  | $ 6 | $ 6 | 12 | $ 12 | 25 | 25 |
NJCTTQ Collaboration Agreement [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | 405,000 |  |  |  |
Aggregate non-refundable payments |  |  |  |  |  | 5,000 |  | 5,000 |  |
Royalties amount |  |  |  |  |  | 5,000 |  | 5,000 |  |
ABP-201 Collaboration and License Agreement [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | 56,500 |  | 56,500 |  |
Celltrion Collaboration and License Agreement [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | 1,750,000 |  | 1,750,000 |  |
Original celltrion agreement |  |  |  |  |  | $ 10,000 |  | $ 10,000 |  |
Percentage of reimbursement |  |  |  |  |  | 50.00% |  | 50.00% |  |
Celltrion Collaboration and License Agreement [Member] | First Milestone [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  |  |  |  |  |
Celltrion Collaboration and License Agreement [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Original celltrion agreement |  |  |  |  |  | 6,000 |  | $ 6,000 |  |
ABP-100 Collaboration and License Agreement [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Guaranteed annual minimum royalties |  |  |  |  |  |  |  | 30 |  |
Royalty payment |  |  |  |  |  |  |  |  | 23 |
ABI [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  | 485,000 |  | 485,000 |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Royalties amount |  |  |  |  |  | $ 20 |  | $ 20 |  |
Amended celltrion agreement |  |  |  |  |  | 25.00% |  | 25.00% |  |
Minimum [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Royalties amount |  |  |  |  |  |  |  | $ 0 | $ 20 |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Royalties amount |  |  |  |  |  | $ 30 |  | $ 30 |  |
Amended celltrion agreement |  |  |  |  |  | 50.00% |  | 50.00% |  |
Maximum [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Royalties amount |  |  |  |  |  |  |  | $ 498,000 |  |
Maximum [Member] | NJCTTQ Collaboration Agreement [Member] |  |  |  |  |  |  |  |  |  |
License and Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate non-refundable payments |  |  |  |  |  |  |  | $ 405,000 |  |

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