Amount of accumulated undistributed earnings (deficit).

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Name:	us-gaap_RetainedEarningsAccumulatedDeficit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Liquidity and Going Concern (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 04, 2024	Dec. 31, 2023	Mar. 31, 2023
Accumulated deficit	$ (333,840)		$ (308,819)
Cash and cash equivalents	$ 37,860		$ 13,523	$ 25,106
Innoviva Strategic Opportunities LLC [Member] \| Credit And Security Agreement [Member]
Aggregate amount		$ 35,000
Interest rate (as a percent)		14.00%