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Property, plant and equipment - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]    
Depreciation and amortization $ 354,485 $ 454,859
Proceeds on sale of property and equipment 51,400 34,655
Gain on sale of assets $ (12,181) (36,207)
Revision of Prior Period, Adjustment    
Property, Plant and Equipment [Line Items]    
Accrued decommissioning costs   $ 8,687