Loans, notes payable, and other financial liabilities - Summary of activity and change in fair value of SAFE agreement (Details) - Other financial liability - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2025
Debt Instrument [Line Items]
Balance, beginning of period	$ 2,361
Additions		$ 3,500
Change in fair value	181	(958)
Balance, end of period	$ 2,542	$ 2,542

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

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+ Details