Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
49,000
GBP
|
51,000
GBP
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through profit or loss [abstract] | |||
| Non-current financial assets at fair value through profit or loss |
113,729,000
GBP
|
128,183,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
2,833,000
GBP
|
4,626,000
GBP
|
18,192,000
GBP
|
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
172,000
GBP
|
190,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
1,288,000
GBP
|
1,288,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
4,668,000
GBP
|
3,538,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Capital reserve |
5,109,000
GBP
|
9,992,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
116,611,000
GBP
|
132,860,000
GBP
|
— |
| Liabilities |
172,000
GBP
|
190,000
GBP
|
— |
| Assets (liabilities) |
116,439,000
GBP
|
132,670,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
2,882,000
GBP
|
4,677,000
GBP
|
— |
| Assets less current liabilities [abstract] |