Income taxes (Schedule of effective income tax rate reconciliation) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income tax recovery at the statutory rate	15.00%
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax recovery at the statutory rate	$ (5,316,650)	$ (2,956,212)
Non-taxable and non-deductible items		189,075
Impact of tax rate changes		42,865
Valuation Allowance		2,724,272
Income tax expense (benefit)	$ 0	$ 0
Domestic Federal [Member]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Non-taxable and non-deductible items	(1.60%)
Valuation Allowance	(5.50%)
Income tax (benefit)	0.00%
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Non-taxable and non-deductible items	$ 568,150
Valuation Allowance	1,954,660
Income tax expense (benefit)	$ 0
Foreign Tax [Member]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income tax recovery at the statutory rate	21.00%
Foreign Tax [Member] | United States [Member]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Non-deductible and other expenses	0.00%
Statutory income tax differential	3.50%
Valuation Allowance	(7.00%)
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Non-deductible and other expenses	$ 0
Statutory income tax differential	(1,228,030)
Valuation Allowance	$ 2,492,310
Foreign Tax [Member] | United Kingdom [Member]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory income tax differential	2.90%
Valuation Allowance	(7.20%)
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory income tax differential	$ (1,019,710)
Valuation Allowance	$ 2,549,270