| Cover | Jul. 23, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 23, 2021 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-37521 |
| Entity Registrant Name | INTEC PHARMA LTD. |
| Entity Central Index Key | 0001638381 |
| Entity Incorporation, State or Country Code | L3 |
| Entity Address, Address Line One | 12 Hartom St. |
| Entity Address, Address Line Two | Har Hotzvim |
| Entity Address, City or Town | Jerusalem, |
| Entity Address, Country | IL |
| Entity Address, Postal Zip Code | 9777512 |
| City Area Code | 972-2 |
| Local Phone Number | 586-4657 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary Shares, no par value |
| Entity Emerging Growth Company | false |
