v3.26.1
Income taxes - Income (loss) before provision for or (benefit from) income taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Income Taxes    
Domestic $ (11,745) $ (21,960)
Foreign 0 0
Total income (or loss) before income tax expense (or benefit) $ (11,745) $ (21,960)