| Document and Entity Information | Nov. 19, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 19, 2021 |
| Entity Registrant Name | MOBILE INFRASTRUCTURE CORPORATION |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 000-55760 |
| Entity Tax Identification Number | 47-3945882 |
| Entity Address, Address Line One | 250 E. 5th Street |
| Entity Address, Address Line Two | Suite 2110 |
| Entity Address, City or Town | Cincinnati |
| Entity Address, State or Province | OH |
| Entity Address, Postal Zip Code | 45202 |
| City Area Code | 702 |
| Local Phone Number | 534-5577 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001642985 |
