| Document And Entity Information | Mar. 20, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Aterian, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Mar. 20, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-38937 |
| 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 |
| Written Communications | false |
| Current Fiscal Year End Date | --12-31 |
| 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 |
