Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Cash flows from (used in) operations |
57,038,000
GBP
|
25,777,000
GBP
|
| Interest paid, classified as operating activities |
3,531,000
GBP
|
2,924,000
GBP
|
| Cash flows from (used in) operating activities |
49,861,000
GBP
|
20,726,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Other cash payments to acquire interests in joint ventures, classified as investing activities |
1,624,000
GBP
|
289,000
GBP
|
| Purchase of property, plant and equipment, classified as investing activities |
32,000
GBP
|
115,000
GBP
|
| Interest received, classified as investing activities |
182,000
GBP
|
377,000
GBP
|
| Cash flows from (used in) investing activities |
2,076,000
GBP
|
19,525,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Payments to acquire or redeem entity's shares |
21,000
GBP
|
–
GBP
|
| Payments of lease liabilities, classified as financing activities |
85,000
GBP
|
73,000
GBP
|
| Dividends paid, classified as financing activities |
5,913,000
GBP
|
1,077,000
GBP
|
| Cash flows from (used in) financing activities |
52,610,000
GBP
|
324,000
GBP
|
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
673,000
GBP
|
877,000
GBP
|