Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2025	May 13, 2025
Document Information [Line Items]
Entity Central Index Key	0001757715
Entity Registrant Name	Aterian, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2025
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2025
Document Transition Report	false
Entity File Number	001-38937
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-1739858
Entity Address, Address Line One	350 Springfield Avenue, Suite 200
Entity Address, City or Town	Summit
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07901
City Area Code	347
Local Phone Number	676-1681
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	ATER
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		8,750,741