| Cover | Nov. 15, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 15, 2021 |
| Entity File Number | 1-12471 |
| Entity Registrant Name | THEMAVEN, INC. |
| Entity Central Index Key | 0000894871 |
| Entity Tax Identification Number | 68-0232575 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 200 Vesey Street |
| Entity Address, Address Line Two | 24th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10281 |
| City Area Code | 212 |
| Local Phone Number | 321-5002 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
