Note 13 - Net Foreign Exchange Gain - Foreign Exchange Gain (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement Line Items [Line Items]
Unrealised foreign exchange gain	$ 2,755	$ 8,367	$ 31,411
Realised foreign exchange loss	(1,571)	(4,062)	(1,750)
Net foreign exchange gain	$ 1,184	$ 4,305	$ 29,661

The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]]

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