Long-term debt - Long-term portion (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Long-term debt
Balance - Beginning of period	$ 4,499	$ 4,661	$ 4,661
Interest expense	159		394
Interest paid	(150)		(331)
Foreign exchange	(1)		65
Repayment		$ (290)	(290)
Balance - End of period	4,507		4,499
Less: Current portion	$ 4,507
Long-term portion			$ 4,499

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details