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Property, plant and equipment (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Property, plant and equipment (Textual)        
Depreciation expense $ 42,297 $ 92,771 $ 85,034 $ 184,964