Statement Of Cash Flows [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) investing activities [abstract] | ||
| Dividends received from associates, classified as investing activities |
300,000
GBP
|
—
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Proceeds from exercise of options |
0 .1
GBP
|
400,000
GBP
|
| Repayments of bonds, notes and debentures |
1 2 9 .1
GBP
|
16 0 . 6
GBP
|