Income taxes (Details 1) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income (Loss) before income tax expenses			$ 1,306,538	$ (50,298)
Income tax expenses (benefits) computed at statutory tax rates			333,469	(10,563)
Foreign tax rate differential
Effect of deductible research and development expenses			40,317
Effect of temporary differences			1,061
Effect of change in valuation allowance			19,455	10,563
Income tax expenses (benefits)	$ 146,814		$ 394,302