XML 42 R11.htm IDEA: XBRL DOCUMENT
v3.20.4

Loss Before Tax | 12 Months Ended
--- | ---
Dec. 31, 2020
Material Income And Expense [Abstract] |
Loss Before Tax | 5. Loss before tax Loss before tax is stated after charging:
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (in thousands) |
|  | £ |  |  | £ |  |  | £ |
Administrative expenses: |  |  |  |  |  |  |  |  |  |  |  |
Amortization |  |  | 478 |  |  |  | 377 |  |  |  | 230 |
Depreciation |  |  | 412 |  |  |  | 341 |  |  |  | 141 |

X
- References No definition available. + Details
Name: | ifrs-full_MaterialIncomeAndExpenseAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for loss before tax. + References No definition available. + Details
Name: | ncna_DisclosureOfLossBeforeTaxExplanatory
Namespace Prefix: | ncna_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration