Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||
| Interest income | — | — | — | — |
-
GBP
|
22,000
GBP
|
— | — |
22,000
GBP
|
— |
25,000
GBP
|
— | — |
-
GBP
|
25,000
GBP
|
— | — | — | — | — |
| Revenue | — | — | — | — |
-
GBP
|
50,520,000
GBP
|
— | — |
50,520,000
GBP
|
— |
29,805,000
GBP
|
— | — |
-
GBP
|
29,805,000
GBP
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||
| Interest expense | — | — | — | — |
-
GBP
|
7 99
GBP
|
— | — |
7 99
GBP
|
— |
641,000
GBP
|
— | — |
-
GBP
|
641,000
GBP
|
— | — | — | — | — |
| Operating expense | — | — | — | — |
-
GBP
|
45,492,000
GBP
|
— | — |
45,492,000
GBP
|
— |
30,916,000
GBP
|
— | — |
-
GBP
|
30,916,000
GBP
|
— | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||||||
| Depreciation and amortisation expense [abstract] | ||||||||||||||||||||
| Depreciation expense | — | — | — | — |
-
GBP
|
2,571,000
GBP
|
— | — |
2,571,000
GBP
|
— |
2,193,000
GBP
|
— | — |
-
GBP
|
2, 193
GBP
|
— | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||||||||||||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||||||||||||||||
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — | — | — | — | — | — |
60,000
GBP
|
— |
46 7
GBP
|
— | — | — | — | — | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||
| Share of profit (loss) of joint ventures accounted for using equity method | — | — | — | — |
125,000
GBP
|
-
GBP
|
— | — |
125,000
GBP
|
— |
8 7
GBP
|
— | — |
87,000
GBP
|
-
GBP
|
— | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income |
2 07
GBP
|
-
GBP
|
1,439,000
GBP
|
-
GBP
|
— | — |
52,000
GBP
|
-
GBP
|
1,646,000
GBP
|
1,491,000
GBP
|
4,261,000
GBP
|
3,354,000
GBP
|
-
GBP
|
— | — |
-
GBP
|
398,000
GBP
|
509,000
GBP
|
-
GBP
|
3, 7 52
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — | — | — |
1,439,000
GBP
|
— |
3,7 52
GBP
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — | — | — |
207,000
GBP
|
— |
509,000
GBP
|
— | — | — | — | — | — | — | — | — |