| Cover | Dec. 02, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 02, 2024 |
| Entity File Number | 001-39677 |
| Entity Registrant Name | CONX Corp. |
| Entity Central Index Key | 0001823000 |
| Entity Tax Identification Number | 85-2728630 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 5701 S. Santa Fe Dr. |
| Entity Address, City or Town | Littleton |
| Entity Address, State or Province | CO |
| Entity Address, Postal Zip Code | 80120 |
| City Area Code | 303 |
| Local Phone Number | 472-1542 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
