v3.25.3

Related Party Transactions - Research and development Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Related Party Transactions
Total operating costs and expenses	$ 14,520	$ 15,158	$ 47,116	$ 49,160
Advent BioServices
Related Party Transactions
Total operating costs and expenses	$ 4,452	$ 5,036	$ 15,178	$ 13,766
Operating Cost and Expense, Related Party, Type [Extensible Enumeration]	us-gaap:RelatedPartyMember	us-gaap:RelatedPartyMember	us-gaap:RelatedPartyMember	us-gaap:RelatedPartyMember
Advent BioServices \| Manufacturing cost in London
Related Party Transactions
Related party costs, Manufacturing costs	$ 1,600	$ 2,430	$ 5,264	$ 6,008
Advent BioServices \| Manufacturing cost at Sawston facility
Related Party Transactions
Related party costs, Manufacturing costs	2,827	$ 2,606	9,337	$ 7,758
Advent BioServices \| SOW 8 one-time milestones -Expensed and due, but unpaid (milestone complete)
Related Party Transactions
Related party costs, SOW one-time milestones - Shares			285
Advent BioServices \| SOW 8 one-time milestones - Expensed but unpaid, not yet due (milestone not yet complete)
Related Party Transactions
Related party costs, SOW one-time milestones - Shares	$ 25		$ 293

Costs recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

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- Definition

Costs recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party, settled in shares.

+ References

No definition available.

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- Definition

Indicates status and type of related party for cost and expense classified as operating.

+ References

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.

+ References

No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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NORTHWEST BIOTHERAPEUTICS INC 10-Q