Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Cash flows from (used in) operations |
17,367,000
GBP
|
58,861,000
GBP
|
| Interest paid, classified as operating activities |
4,302,000
GBP
|
3,998,000
GBP
|
| Cash flows from (used in) operating activities |
2,853,000
GBP
|
37,161,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Other cash payments to acquire interests in joint ventures, classified as investing activities |
250,000
GBP
|
1,849,000
GBP
|
| Purchase of property, plant and equipment, classified as investing activities |
396,000
GBP
|
110,000
GBP
|
| Interest received, classified as investing activities |
445,000
GBP
|
227,000
GBP
|
| Cash flows from (used in) investing activities |
15,424,000
GBP
|
53,387,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Payments of lease liabilities, classified as financing activities |
118,000
GBP
|
91,000
GBP
|
| Dividends paid, classified as financing activities |
4,438,000
GBP
|
4,032,000
GBP
|
| Cash flows from (used in) financing activities |
2,678,000
GBP
|
15,772,000
GBP
|
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
15,599,000
GBP
|
454,000
GBP
|