| Document And Entity Information | Jul. 10, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Autonomix Medical, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Jul. 10, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-41940 |
| Entity, Tax Identification Number | 47-1607810 |
| Entity, Address, Address Line One | 21 Waterway Avenue, Suite 300 |
| Entity, Address, City or Town | The Woodlands |
| Entity, Address, State or Province | TX |
| Entity, Address, Postal Zip Code | 77380 |
| City Area Code | 713 |
| Local Phone Number | 588-6150 |
| 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 | AMIX |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | true |
| Entity, Ex Transition Period | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001617867 |
