v3.25.4
Document And Entity Information
Feb. 11, 2026
Document Information [Line Items]  
Entity Registrant Name Atossa Therapeutics, Inc.
Document Type 8-K
Document Period End Date Feb. 11, 2026
Entity Incorporation, State or Country Code DE
Entity File Number 001-35610
Entity Tax Identification Number 26-4753208
Entity Address, Address Line One 1448 NW Market Street,
Entity Address, Address Line Two Suite 500
Entity Address, City or Town Seattle
Entity Address, State or Province WA
Entity Address, Postal Zip Code 98107
City Area Code 206
Local Phone Number 588-0256
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Title of 12(b) Security Common Stock
Trading Symbol ATOS
Security Exchange Name NASDAQ
Amendment Flag false
Entity Central Index Key 0001488039