| Cover | Aug. 15, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 15, 2022 |
| Entity File Number | 001-35527 |
| Entity Registrant Name | Emmaus Life Sciences, Inc. |
| Entity Central Index Key | 0000822370 |
| Entity Tax Identification Number | 87-0419387 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 21250 Hawthorne Boulevard |
| Entity Address, Address Line Two | Suite 800 |
| Entity Address, City or Town | Torrance |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 90503 |
| City Area Code | 310 |
| Local Phone Number | 214-0065 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
