6. Property and Equipment: Schedule of Property, Plant and Equipment (Details) - USD ($)		May 31, 2024	May 31, 2023
Property, Plant and Equipment, Gross		$ 30,006,662	$ 28,857,274
Less accumulated depreciation		18,825,729	17,135,490
Property and equipment, net (Note 6)	[1]	11,180,933	11,721,784
Land
Property, Plant and Equipment, Gross		195,220	195,220
Building Improvements
Property, Plant and Equipment, Gross		10,054,459	10,033,399
Machinery and Equipment
Property, Plant and Equipment, Gross		15,956,076	15,278,928
Furniture and Fixtures
Property, Plant and Equipment, Gross		3,113,921	2,840,980
Vehicles
Property, Plant and Equipment, Gross		24,818	24,818
Land Improvements
Property, Plant and Equipment, Gross		$ 662,168	$ 483,929

[1] Note 6