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Equity - Accumulated other comprehensive income (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
IFRS Statement [Line Items]      
Beginning balance $ (548)    
Exchange differences arising on translation of foreign operations 0 $ 44  
Changes in fair value of financial assets (2) (2) $ (5)
Remeasurement of defined benefit pension plans 5 (1) 17
Ending balance (666) (548)  
Accumulated other Comprehensive income [member]      
IFRS Statement [Line Items]      
Beginning balance (548) (952) (549)
Exchange differences arising on translation of foreign operations (72) 512 (545)
Changes in fair value of financial assets (179) 67 (30)
Remeasurement of defined benefit pension plans 133 (175) 172
Ending balance (666) (548) (952)
Defined benefit pension plans      
IFRS Statement [Line Items]      
Beginning balance 105 280 108
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 133 (175) 172
Ending balance 238 105 280
Unrealized gain (losses) on securities [Member]      
IFRS Statement [Line Items]      
Beginning balance (869) (936) (906)
Exchange differences arising on translation of foreign operations 0 0 0
Changes in fair value of financial assets (179) 67 (30)
Remeasurement of defined benefit pension plans 0 0 0
Ending balance (1,048) (869) (936)
Foreign currency translation [member]      
IFRS Statement [Line Items]      
Beginning balance 216 (296) 249
Exchange differences arising on translation of foreign operations (72) 512 (545)
Changes in fair value of financial assets 0 0 0
Remeasurement of defined benefit pension plans 0 0 0
Ending balance $ 144 $ 216 $ (296)