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Organization - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jul. 31, 2023	Mar. 31, 2024	Dec. 31, 2023
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Long-term debt, net of debt discount		$ 2,516	$ 2,802
Increase in revenue adjustment	$ 38,000
2.50% Convertible Senior Notes Due 2026
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Long-term debt, net of debt discount		$ 2,500
HEPLISAV-B
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Minimum age approved for vaccine prevention of infection caused		18 years

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Amount, after accumulated amortization, of debt discount.

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