Stock-based compensation - Summary of Stock Based Compensation in Statement of Operations (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	$ 943,911	$ 1,035,713	$ 3,139,427	$ 2,115,795
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	512,246	677,926	2,272,114	1,373,319
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	$ 431,665	$ 357,787	$ 867,313	$ 742,476

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