Warrants - Additional Information (Details)	12 Months Ended
Dec. 31, 2024 shares
Warrants and Rights Note Disclosure [Abstract]
Class of Warrant Or Right, Exercised	(126,258)
Common stock warrant exercises (in shares)	7,971
Common stock warrants expired (in shares)	3,473

Stock Issued During Period, Shares, Stock Warrant Exercised

No definition available.

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Namespace Prefix:	sera_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration