| Cover | 6 Months Ended |
| Jun. 30, 2023 | |
| Entity Addresses [Line Items] | |
| Document Type | S-4/A |
| Amendment Flag | true |
| Amendment Description | Vascular Biogenics Ltd. is filing this Amendment No. 5 to its registration statement on Form S-4 (File No. 333-271826) as an exhibits-only filing. Accordingly, this amendment consists only of the facing page, this explanatory note, Item 21 of Part II of the Registration Statement, the signature page to the Registration Statement and the filed exhibits. The remainder of the Registration Statement is unchanged and has therefore been omitted |
| Entity Registrant Name | Vascular Biogenics Ltd. |
| Entity Central Index Key | 0001603207 |
| Entity Incorporation, State or Country Code | L3 |
| Entity Address, Address Line One | 8 HaSatat St. |
| Entity Address, Address Line Two | Modi’in |
| Entity Address, Postal Zip Code | 7178106 |
| City Area Code | +972 |
| Local Phone Number | 8-9935000 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Small Business | true |
| Entity Emerging Growth Company | false |
| Business Contact [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | 1 Blue Hill Plaza |
| Entity Address, Address Line Two | Suite 1509 |
| Entity Address, Address Line Three | Pearl River |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10965 |
| City Area Code | +1-845 |
| Local Phone Number | 474-8411 |
| Contact Personnel Name | Sam Backenroth |
