Liability for Sale of Future Royalties - Schedule of Changes to Liability (Details) - Liability for Sale of Future Royalties - BVF Partners L.P. - BVF Agreement $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Beginning balance, January 1	$ 0
Cash received from BVF	5,000
Interest accretion	260
Ending balance, December 31	$ 5,260

Fair value, measurement with unobservable inputs reconciliation, recurring basis, liability, cash received.

No definition available.

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- Definition

Fair value, measurement with unobservable inputs reconciliation, recurring basis, liability, interest accretion.

+ References

No definition available.

+ Details

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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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

No definition available.

+ Details

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- Details

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