Cover Page - shares	3 Months Ended
	Mar. 31, 2025	Apr. 30, 2025
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-42179
Entity Registrant Name	Artiva Biotherapeutics, Inc.
Entity Central Index Key	0001817241
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-3614316
Entity Address, Address Line One	5505 Morehouse Drive
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92121
City Area Code	858
Local Phone Number	267-4467
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	ARTV
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Interactive Data Current	Yes
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		24,363,119