Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
15,309,000
USD
|
18,107,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Other intangible assets |
5,948,000
USD
|
4,648,000
USD
|
— |
| Goodwill |
12,583,000
USD
|
11,385,000
USD
|
— |
| Investment property [abstract] | |||
| Investment property |
620,000
USD
|
1,739,000
USD
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
15,555,000
USD
|
12,667,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
36,495,000
USD
|
34,932,000
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
34,461,000
USD
|
30,951,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
35,156,000
USD
|
65,331,000
USD
|
50,575,000
USD
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
2,000,000
USD
|
1,356,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
2,235,000
USD
|
1,634,000
USD
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
46,256,000
USD
|
47,519,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
537,000
USD
|
621,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
1,320,000
USD
|
1,320,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
279,579,000
USD
|
279,888,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
175,181,000
USD
|
193,164,000
USD
|
— |
| Liabilities |
61,180,000
USD
|
69,030,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
115,123,000
USD
|
133,646,000
USD
|
— |
| Current liabilities |
51,293,000
USD
|
57,887,000
USD
|
— |
| Assets less current liabilities [abstract] |