| Cover | Nov. 27, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 27, 2023 |
| Entity File Number | 811-22684 |
| Entity Registrant Name | Daxor Corporation |
| Entity Central Index Key | 0000027367 |
| Entity Tax Identification Number | 13-2682108 |
| Entity Incorporation, State or Country Code | NY |
| Entity Address, Address Line One | 109 Meco Lane |
| Entity Address, City or Town | Oak Ridge |
| Entity Address, State or Province | TN |
| Entity Address, Postal Zip Code | 37830 |
| City Area Code | 212 |
| Local Phone Number | 330-8500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock $0.01 par value |
| Trading Symbol | DXR |
| Entity Emerging Growth Company | false |
