| Cover | Aug. 28, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 28, 2023 |
| Entity File Number | 001-37863 |
| Entity Registrant Name | BIOMERICA, INC. |
| Entity Central Index Key | 0000073290 |
| Entity Tax Identification Number | 95-2645573 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 17571 Von Karman Ave |
| Entity Address, City or Town | Irvine |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92614 |
| City Area Code | 949 |
| Local Phone Number | 645-2111 |
| 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 $0.08 |
| Trading Symbol | BMRA |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
