Schedule of Property, Plant and Equipment (Details) - USD ($)	Feb. 28, 2023	May 31, 2022
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 64,855,027	$ 66,391,904
Less: Accumulated depreciation and amortization	(36,335,865)	(34,515,139)
Net Property, Plant and Equipment	28,519,162	31,876,765
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	60,395,743	57,341,906
Plant Buildings and Land [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	2,364,089	7,020,543
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	1,553,138	1,487,398
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 542,057	$ 542,057