| Cover | Mar. 11, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 11, 2022 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-35141 |
| Entity Registrant Name | Rennova Health, Inc. |
| Entity Central Index Key | 0000931059 |
| Entity Tax Identification Number | 68-0370244 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 400 S. Australian Avenue |
| Entity Address, Address Line Two | Suite 800 |
| Entity Address, City or Town | West Palm Beach |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33401 |
| City Area Code | (561) 855-1626 |
| Local Phone Number | 855-1626 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
