Property, plant and equipment (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Property, plant and equipment
Property, plant and equipment	$ 7,894,061	$ 6,327,629
Less: accumulated depreciation	(903,690)	(718,726)
Property, plant and equipment, net	6,990,371	5,608,903
Automobiles [Member]
Property, plant and equipment
Property, plant and equipment	4,638	4,638
Computer equipment and software [Member]
Property, plant and equipment
Property, plant and equipment	95,700	94,530
Furniture and other equipment [Member]
Property, plant and equipment
Property, plant and equipment	271,798	271,798
Leasehold Improvements [Member]
Property, plant and equipment
Property, plant and equipment	17,280	17,280
Equipment and machinery [Member]
Property, plant and equipment
Property, plant and equipment	943,464	943,464
Building held for leases [Member]
Property, plant and equipment
Property, plant and equipment	196,416	196,416
Laboratory and temporary units [Member]
Property, plant and equipment
Property, plant and equipment	1,364,748	1,364,748
Land [Member]
Property, plant and equipment
Property, plant and equipment	1,190,655	1,190,655
Building [Member]
Property, plant and equipment
Property, plant and equipment	969,188
Construction in progress [Member]
Property, plant and equipment
Property, plant and equipment	$ 2,840,174	$ 2,244,100

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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