Discontinued operations - Mexico project development - Financial Information (Details) - Discontinued Operations. - Mexico Project Development - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision for uncollected value added taxes				$ 377,326
Loss from discontinued operations	$ 207,701	$ 419,833	$ 466,864	$ 1,027,147

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