| Cover | Aug. 16, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 16, 2022 |
| Entity File Number | 000-55900 |
| Entity Registrant Name | MJ Holdings, Inc. |
| Entity Central Index Key | 0001456857 |
| Entity Tax Identification Number | 20-8235905 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 2580 S. Sorrel St. |
| Entity Address, City or Town | Las Vegas |
| Entity Address, State or Province | NV |
| Entity Address, Postal Zip Code | 89146 |
| City Area Code | (702) |
| Local Phone Number | 879-4440 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Trading Symbol | MJNE |
| Entity Emerging Growth Company | false |
