Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
29,293,000
GBP
|
2,495,000
GBP
|
29,218,000
GBP
|
3,021,000
GBP
|
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets and goodwill |
617,000
GBP
|
–
GBP
|
2,179,000
GBP
|
–
GBP
|
| Investment property [abstract] | ||||
| Investment property |
96,275,000
GBP
|
–
GBP
|
100,602,000
GBP
|
–
GBP
|
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | ||||
| Investments in subsidiaries reported in separate financial statements |
–
GBP
|
38,906,000
GBP
|
–
GBP
|
37,771,000
GBP
|
| Investments accounted for using equity method [abstract] | ||||
| Investments accounted for using equity method |
13,280,000
GBP
|
–
GBP
|
10,484,000
GBP
|
–
GBP
|
| Trade and other non-current receivables [abstract] | ||||
| Trade and other non-current receivables |
8,458,000
GBP
|
193,366,000
GBP
|
39,263,000
GBP
|
190,233,000
GBP
|
| Miscellaneous non-current assets [abstract] | ||||
| Non-current net defined benefit asset |
9,930,000
GBP
|
9,930,000
GBP
|
7,725,000
GBP
|
7,725,000
GBP
|
| Trade and other current receivables [abstract] | ||||
| Trade and other current receivables |
90,467,000
GBP
|
25,803,000
GBP
|
76,416,000
GBP
|
40,881,000
GBP
|
| Current prepayments and current accrued income including current contract assets [abstract] | ||||
| Current accrued income including current contract assets [abstract] | ||||
| Current contract assets |
12,693,000
GBP
|
–
GBP
|
13,659,000
GBP
|
–
GBP
|
| Classes of current inventories [abstract] | ||||
| Current inventories |
332,871,000
GBP
|
–
GBP
|
297,618,000
GBP
|
–
GBP
|
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash [abstract] | ||||
| Cash |
16,764,000
GBP
|
9,535,000
GBP
|
13,034,000
GBP
|
5,572,000
GBP
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | ||||
| Non-current assets or disposal groups classified as held for sale |
9,315,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Classes of other provisions [abstract] | ||||
| Other provisions [abstract] | ||||
| Other non-current provisions |
154,000
GBP
|
–
GBP
|
1,178,000
GBP
|
–
GBP
|
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
1,092,000
GBP
|
–
GBP
|
1,699,000
GBP
|
–
GBP
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current borrowings |
74,443,000
GBP
|
72,542,000
GBP
|
84,819,000
GBP
|
84,102,000
GBP
|
| Non-current portion of non-current borrowings, by type [abstract] | ||||
| Trade and other non-current payables [abstract] | ||||
| Trade and other non-current payables |
11,991,000
GBP
|
197,000
GBP
|
2,501,000
GBP
|
–
GBP
|
| Trade and other current payables [abstract] | ||||
| Current accruals and current deferred income including current contract liabilities [abstract] | ||||
| Current deferred income including current contract liabilities [abstract] | ||||
| Current contract liabilities [abstract] | ||||
| Current contract liabilities |
4,882,000
GBP
|
–
GBP
|
1,060,000
GBP
|
–
GBP
|
| Trade and other current payables |
89,820,000
GBP
|
66,490,000
GBP
|
73,477,000
GBP
|
68,350,000
GBP
|
| Issued capital [abstract] | ||||
| Issued capital |
13,801,000
GBP
|
13,801,000
GBP
|
13,799,000
GBP
|
13,799,000
GBP
|
| Retained earnings [abstract] | ||||
| Retained earnings |
399,791,000
GBP
|
117,927,000
GBP
|
383,219,000
GBP
|
102,833,000
GBP
|
| Accumulated other comprehensive income [abstract] | ||||
| Revaluation surplus |
1,008,000
GBP
|
–
GBP
|
1,011,000
GBP
|
–
GBP
|
| Net assets (liabilities) [abstract] | ||||
| Assets (liabilities) |
425,148,000
GBP
|
140,513,000
GBP
|
410,118,000
GBP
|
125,142,000
GBP
|
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
462,110,000
GBP
|
38,002,000
GBP
|
400,727,000
GBP
|
46,453,000
GBP
|
| Current liabilities |
174,672,000
GBP
|
139,424,000
GBP
|
169,982,000
GBP
|
158,183,000
GBP
|
| Current assets (liabilities) |
287,438,000
GBP
|
101,422,000
GBP
|
230,745,000
GBP
|
111,730,000
GBP
|
| Assets less current liabilities [abstract] |