v3.25.4
Summary of significant accounting policies - Product Warranties (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance, beginning of the period $ 520 $ 689
Warranty provisions 454 0
Warranty repairs (85) (169)
Balance, end of the period $ 889 $ 520