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Contra Research and Development Expense

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Revenue Regulatory and Development Milestone Recevied

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Target Fees

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Transaction Price

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Up Front Payment Arrangement

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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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, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Amount of revenue that is not accounted for under Topic 606.

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Evaluation and Collaborative Arrangements (Additional Information) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 31, 2025	Aug. 31, 2024	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Long-Term Purchase Commitment [Line Items]
Cash and cash equivalents			$ 4,868	$ 10,216	$ 4,868	$ 10,216	$ 18,618
Accounts Receivable					0	(428)
Accounts receivable			2,042		2,042		2,042
Deferred Revenue			5,123		5,123		8,539
Chugai Collaboration and License Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Accounts receivable			2,000		2,000
Up front payment arrangement					10,000
Transaction price	$ 10,000
Chugai Pharmaceutical Company Limited [Member] \| Chugai Collaboration and License Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Cash received					8,000
Up front payment arrangement							$ 10,000
Revenue from contract	10,000		1,700		3,400
Target fees	5,000
Deferred Revenue			5,100		5,100
ProGen Company Limited [Member] \| Collaboration Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Contra-research and development expense			100		400
Research And Development Arrangement [Member]
Long-Term Purchase Commitment [Line Items]
Accounts Receivable		$ 600
Up front payment arrangement		600
Contract Revenue		$ 1,200
Research And Development Arrangement [Member] \| Chugai Pharmaceutical Company Limited [Member]
Long-Term Purchase Commitment [Line Items]
Revenue from contract				$ 0		$ 200
Contract liability			$ 0		$ 0
Development Milestones [Member] \| Chugai Pharmaceutical Company Limited [Member] \| Chugai Collaboration and License Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Revenue Regulatory and Development Milestone Received	57,000
Sales-based Milestones [Member] \| Chugai Pharmaceutical Company Limited [Member] \| Chugai Collaboration and License Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Revenue from contract	100,000
Customer's Option [Member] \| Chugai Pharmaceutical Company Limited [Member] \| Chugai Collaboration and License Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Revenue Regulatory and Development Milestone Received	10,000
Technology Transfer Milestones [Member] \| Chugai Pharmaceutical Company Limited [Member] \| Chugai Collaboration and License Agreement [Member]
Long-Term Purchase Commitment [Line Items]
Up front payment arrangement	$ 18,000