v3.25.3
Document And Entity Information
Oct. 23, 2025
Document Information [Line Items]  
Entity, Registrant Name Cassava Sciences, Inc.
Document, Type 8-K
Document, Period End Date Oct. 23, 2025
Entity, Incorporation, State or Country Code DE
Entity, File Number 000-41905
Entity, Tax Identification Number 91-1911336
Entity, Address, Address Line One 6801 N Capital of Texas Highway
Entity, Address, Address Line Two Building 1; Suite 300
Entity, Address, City or Town Austin
Entity, Address, State or Province TX
Entity, Address, Postal Zip Code 78731
City Area Code 512
Local Phone Number 501-2444
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol SAVA
Security Exchange Name NASDAQ
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0001069530