Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||
| Equity |
61,0 87
GBP
|
— | — | — |
30,330,000
GBP
|
30, 044
GBP
|
245,000
GBP
|
468,000
GBP
|
— | — |
24,456,000
GBP
|
54,903,000
GBP
|
— | — | — |
12 2
GBP
|
245,000
GBP
|
30 ,324
GBP
|
— | — |
21,507,000
GBP
|
223,000
GBP
|
2,000
GBP
|
14,721,000
GBP
|
36, 453
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||
| Profit (loss) | — |
–
GBP
|
7 ,200
GBP
|
7 ,200
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — |
5,467,000
GBP
|
5 ,4 6 7
GBP
|
— | — | — | — | — |
| Comprehensive income | — |
–
GBP
|
7, 7 9 0
GBP
|
7 ,200
GBP
|
— | — | — | — |
–
GBP
|
590,000
GBP
|
— | — |
–
GBP
|
1 24
GBP
|
–
GBP
|
— | — | — |
5,343,000
GBP
|
5,4 6 7
GBP
|
— | — | — | — | — |
| Issue of equity | — |
–
GBP
|
6,000
GBP
|
–
GBP
|
— | — | — | — |
6,000
GBP
|
–
GBP
|
— | — |
15, 603
GBP
|
–
GBP
|
22,000
GBP
|
— | — | — |
15, 625
GBP
|
–
GBP
|
— | — | — | — | — |
| Dividends recognised as distributions to owners | — |
–
GBP
|
3,328,000
GBP
|
3,328,000
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — |
3, 167
GBP
|
3, 167
GBP
|
— | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
–
GBP
|
1,6 98
GBP
|
1,698,000
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — |
682,000
GBP
|
682,000
GBP
|
— | — | — | — | — |