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Discontinued operations - Mexico project development - Financial Information (Details) - Discontinued Operations. - Mexico Project Development - USD ($) | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 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 | $ 259,163 | $ 607,314

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