| Document And Entity Information | Nov. 18, 2022 |
| Document Information [Line Items] | |
| Entity, Registrant Name | ENDI CORP. |
| Document, Type | 8-K |
| Document, Period End Date | Nov. 18, 2022 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 000-56469 |
| Entity, Tax Identification Number | 87-4284605 |
| Entity, Address, Address Line One | 2400 Old Brick Rd. |
| Entity, Address, Address Line Two | Suite 115 |
| Entity, Address, City or Town | Glen Allen |
| Entity, Address, State or Province | VA |
| Entity, Address, Postal Zip Code | 23060 |
| City Area Code | 434 |
| Local Phone Number | 336-7737 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001908984 |
