| Cover | Mar. 10, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 10, 2022 |
| Entity File Number | 001-37492 |
| Entity Registrant Name | ANIXA BIOSCIENCES, INC. |
| Entity Central Index Key | 0000715446 |
| Entity Tax Identification Number | 11-2622630 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 3150 Almaden Expressway |
| Entity Address, Address Line Two | Suite 250 |
| Entity Address, City or Town | San Jose |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 95118 |
| City Area Code | (408) |
| Local Phone Number | 708-9808 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | ANIX |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
