| Component: (Network and Table) | |
|---|---|
| Network | 039 - Disclosure - BUSINESS SEGMENTS (Details) - Geographic information regarding net sales (http://www.biomerica.com/role/GeographicinformationregardingnetsalesTable) |
| Table | BUSINESS SEGMENTS (Details) - Geographic information regarding net sales [Table] |
| Reporting Entity [Axis] | 0000073290 (http://www.sec.gov/CIK) |
| BUSINESS SEGMENTS (Details) - Geographic information regarding net sales [Line Items] | Period [Axis] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2015-06-01 - 2016-05-31 | 2014-06-01 - 2015-05-31 | |||||||||||||
| Geographical [Axis] | Geographical [Axis] | |||||||||||||
| Europe [Member] | UNITED STATES | Asia [Member] | South America [Member] | Middle East [Member] | Other Foreign [Member] | Geographical [Domain] | Europe [Member] | UNITED STATES | Asia [Member] | South America [Member] | Middle East [Member] | Other Foreign [Member] | Geographical [Domain] | |
Net sales: | ||||||||||||||
Net Sales | 5,139,816 | 4,962,373 | ||||||||||||