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Note 1 - Summary of Significant Accounting Policies - Summary of Useful Life of Property Plant and Equipment (Details)	May 31, 2025
Plant Building [Member]
Property, Plant, And Equipment, Useful Life (Year)	39 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant, And Equipment, Useful Life (Year)	5 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant, And Equipment, Useful Life (Year)	12 years
Leasehold Improvements [Member] \| Minimum [Member]
Property, Plant, And Equipment, Useful Life (Year)	5 years
Leasehold Improvements [Member] \| Maximum [Member]
Property, Plant, And Equipment, Useful Life (Year)	7 years
Furniture and Fixtures [Member] \| Minimum [Member]
Property, Plant, And Equipment, Useful Life (Year)	3 years
Furniture and Fixtures [Member] \| Maximum [Member]
Property, Plant, And Equipment, Useful Life (Year)	5 years