Statement Of Cash Flows [Abstract]
| Concept |
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 |
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 |
As at 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||||||||||
| Profit (loss) |
215,000
GBP
|
-
GBP
|
1,491,000
GBP
|
— |
-
GBP
|
600,000
GBP
|
1, 106
GBP
|
-
GBP
|
-
GBP
|
1,7 06
GBP
|
1,491,000
GBP
|
3, 7 94
GBP
|
3,354,000
GBP
|
-
GBP
|
2,656,000
GBP
|
1, 138
GBP
|
— |
-
GBP
|
-
GBP
|
440,000
GBP
|
-
GBP
|
3,354,000
GBP
|
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||||||||||||
| Adjustments for decrease (increase) in inventories | — | — | — | — | — | — | — | — | — |
2, 105
GBP
|
— |
1, 12 7
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Adjustments for unrealised foreign exchange losses (gains) | — | — | — | — | — | — | — | — | — |
121,000
GBP
|
— |
39,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) operations | — | — | — | — | — | — | — | — | — |
5,425,000
GBP
|
— |
1,263,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Interest paid, classified as operating activities | — | — | — | — | — | — | — | — | — |
799,000
GBP
|
— |
641,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Interest received, classified as operating activities | — | — | — | — | — | — | — | — | — |
22,000
GBP
|
— |
25,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Income taxes paid (refund), classified as operating activities | — | — | — | — | — | — | — | — | — |
216,000
GBP
|
— |
198,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) operating activities | — | — | — | — | — | — | — | — | — |
4,432,000
GBP
|
— |
449,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||||||||||
| Other cash payments to acquire interests in joint ventures, classified as investing activities | — | — | — | — | — | — | — | — | — |
-
GBP
|
— |
-
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — | — |
1, 781
GBP
|
— |
3, 186
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) investing activities | — | — | — | — | — | — | — | — | — |
2, 706
GBP
|
— |
4,292,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||||||||||
| Proceeds from borrowings, classified as financing activities | — | — | — | — | — | — | — | — | — |
46,000
GBP
|
— |
61,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) financing activities | — | — | — | — | — | — | — | — | — |
271,000
GBP
|
— |
285,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — | — | — | — | — | — | — |
1,455,000
GBP
|
— |
4, 128
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — | — | — | — | — | — | — |
105,000
GBP
|
— |
172,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
3,018,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
3, 7 68
GBP
|
— | — | — | — | — |