| Document And Entity Information | Apr. 19, 2023 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Aterian, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Apr. 19, 2023 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-38937 |
| Entity, Tax Identification Number | 83-1739858 |
| Entity, Address, Address Line One | Aterian, Inc. |
| Entity, Address, Address Line Two | 37 East 18th Street, 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 |
| 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 | ATER |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | true |
| Entity, Ex Transition Period | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001757715 |
