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] | |||
| Current trade receivables |
-
USD
|
21,000
USD
|
— |
| Other current receivables |
136,000
USD
|
272,000
USD
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through other comprehensive income [abstract] | |||
| Non-current investments in equity instruments designated at fair value through other comprehensive income |
69,698,000
USD
|
95,215,000
USD
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
10,454,000
USD
|
14,576,000
USD
|
18,373,000
USD
|
| Trade and other current payables [abstract] | |||
| Current trade payables |
78,000
USD
|
13,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
939,000
USD
|
-
USD
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
313,000
USD
|
1,073,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
80,288,000
USD
|
110,193,000
USD
|
— |
| Liabilities |
1,330,000
USD
|
1,170,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
10,590,000
USD
|
14,869,000
USD
|
— |
| Current liabilities |
391,000
USD
|
1,170,000
USD
|
— |
| Assets less current liabilities [abstract] |