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Equity - Accumulated other comprehensive income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Statement [line items] |  |  |
Beginning balance | $ (180) |  |
Ending balance | 8,621 | $ (180) |
Accumulated other comprehensive income |  |  |
Statement [line items] |  |  |
Beginning balance | (180) | (218) | $ (666)
Exchange differences arising on translation of foreign operations | (626) | (123) | (245)
Changes in fair value of financial assets | 9,427 | 152 | 142
Remeasurement of defined benefit pension plans |  | 9 | 551
Ending balance | 8,621 | (180) | (218)
Defined benefit pension plans |  |  |
Statement [line items] |  |  |
Beginning balance | 798 | 789 | 238
Exchange differences arising on translation of foreign operations | 0 | 0 | 0
Changes in fair value of financial assets | 0 | 0 | 0
Remeasurement of defined benefit pension plans | 0 | 9 | 551
Ending balance | 798 | 798 | 789
Unrealized gain (losses) on securities |  |  |
Statement [line items] |  |  |
Beginning balance | (754) | (906) | (1,048)
Exchange differences arising on translation of foreign operations | 0 | 0 | 0
Changes in fair value of financial assets | 9,427 | 152 | 142
Remeasurement of defined benefit pension plans | 0 | 0 | 0
Ending balance | 8,673 | (754) | (906)
Foreign currency translation |  |  |
Statement [line items] |  |  |
Beginning balance | (224) | (101) | 144
Exchange differences arising on translation of foreign operations | (626) | (123) | (245)
Changes in fair value of financial assets | 0 | 0 | 0
Remeasurement of defined benefit pension plans | 0 | 0 | 0
Ending balance | $ (850) | $ (224) | $ (101)

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