| Cover | Nov. 16, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 16, 2023 |
| Entity File Number | 001-41863 |
| Entity Registrant Name | SIGNING DAY SPORTS, INC. |
| Entity Central Index Key | 0001898474 |
| Entity Tax Identification Number | 87-2792157 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 8355 East Hartford Rd. |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Scottsdale |
| Entity Address, State or Province | AZ |
| Entity Address, Postal Zip Code | 85255 |
| City Area Code | 480 |
| Local Phone Number | 220-6814 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.0001 par value per share |
| Trading Symbol | SGN |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
