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Financial risk management objectives and policies - Foreign currency risk (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of risk management strategy related to hedge accounting [line items]
Effect on loss (Increase in Euro exchange rate)	$ (55)	$ (52)	$ (57)
Effect on loss (Decrease in Euro exchange rate)	$ 73	$ 69	$ 75
Currency risk [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Increase in Euro exchange rate	10.00%	10.00%	10.00%
Effect on loss (Increase in Euro exchange rate)	$ (573)	$ (478)	$ (258)
Decrease in Euro exchange rate	(10.00%)	(10.00%)	(10.00%)
Effect on loss (Decrease in Euro exchange rate)	$ 573	$ 478	$ 258

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- Definition

Decrease in market exchange rates expressed as a percentage.

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Increase in market exchange rates expressed as a percentage.

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- Definition

Amount of the negative effect on profit or loss as a result of the conduct of a sensitivity analysis for types of market risk to which the entity is exposed, showing how profit or loss would have been affected by changes in the relevant risk variable that were reasonably possible at that date.

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Amount of the positive effect on profit or loss as a result of the conduct of a sensitivity analysis for types of market risk to which the entity is exposed, showing how profit or loss would have been affected by changes in the relevant risk variable that were reasonably possible at that date.

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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