| Document And Entity Information - USD ($) | 12 Months Ended | ||
| Dec. 31, 2021 | Jul. 14, 2021 | Jun. 30, 2020 | |
| Document Information Line Items | |||
| Entity Registrant Name | Emmaus Life Sciences, Inc. | ||
| Document Type | 10-K/A | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Common Stock, Shares Outstanding | 49,311,864 | ||
| Entity Public Float | $ 58,283,977 | ||
| Amendment Flag | true | ||
| Amendment Description | Emmaus Life Sciences, Inc. is filing this Form 10-K/A to amend its Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2022, for purposes of adding certain exhibits inadvertently omitted therefrom. | ||
| Entity Central Index Key | 0000822370 | ||
| Entity Current Reporting Status | No | ||
| Entity Voluntary Filers | No | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Well-known Seasoned Issuer | No | ||
| Document Period End Date | Dec. 31, 2021 | ||
| Document Fiscal Year Focus | 2021 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | false | ||
| Entity Shell Company | false | ||
| ICFR Auditor Attestation Flag | false | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity File Number | 001-35527 | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 87-0419387 | ||
| 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 | ||
| Title of 12(b) Security | Common stock, $0.001 par value | ||
| Entity Interactive Data Current | No | ||
| Auditor Name | BAKER TILLY US, LLP | ||
| Auditor Location | San Diego, California | ||
| Auditor Firm ID | 23 |
