Stockholders' equity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
[custom:AllocatedShareBasedCompensationExpenseBenefit]	$ 368,391	$ 156,529	$ 556,628	$ 367,651
Cost of Sales [Member]
[custom:AllocatedShareBasedCompensationExpenseBenefit]
Research and Development Expense [Member]
[custom:AllocatedShareBasedCompensationExpenseBenefit]	22,964	47,465	48,820	117,828
General and Administrative Expense [Member]
[custom:AllocatedShareBasedCompensationExpenseBenefit]	345,427	79,208	503,411	185,041
Selling and Marketing Expense [Member]
[custom:AllocatedShareBasedCompensationExpenseBenefit]		$ 29,856	$ 4,397	$ 64,782