| Cover | Jan. 09, 2025 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 09, 2025 |
| Entity File Number | 000-15078 |
| Entity Registrant Name | ETHEMA HEALTH CORPORATION |
| Entity Central Index Key | 0000792935 |
| Entity Tax Identification Number | 84-1227328 |
| Entity Incorporation, State or Country Code | CO |
| Entity Address, Address Line One | 950 Evernia Street |
| Entity Address, City or Town | West Palm Beach |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33401 |
| City Area Code | 416 |
| Local Phone Number | 500-0020 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
