Income taxes - Components of Income Tax Expense (Details) - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Current
Federal	$ 2,809	$ 27,451
State	46,915	13,555
Foreign	913,818	670,512
Current, Total	963,542	711,518
Deferred
Federal	(941,331)	24,622
State	(435,241)	92,271
Foreign	(134,791)	(20,187)
Deferred, Total	(1,511,363)	96,706
Total (benefit of) provision for income taxes	$ (547,821)	$ 808,224

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

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