Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Mar. 13, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Registrant Name	Aterian, Inc.
Entity Central Index Key	0001757715
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		81,000,989
Entity File Number	001-38937
Entity Tax Identification Number	83-1739858
Entity Address, Address Line One	37 East 18th Street
Entity Address, Address Line Two	7th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10003
City Area Code	(347)
Local Phone Number	676-1681
Entity Incorporation, State or Country Code	DE
Document Annual Report	true
Document Transition Report	false
Title of each class	Common stock, par value $0.0001 per share
Trading Symbol(s)	ATER
Name of each exchange on which registered	NASDAQ
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Public Float			$ 142.1
ICFR Auditor Attestation Flag	false
Auditor Name	Deloitte & Touche LLP
Auditor Firm ID	34
Auditor Location	New York, New York