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Note B - Summary of Significant Accounting Policies - Property and Equipment, Estimated Useful Lives (Details)	Oct. 31, 2024
Furniture, Fixtures and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Furniture, Fixtures and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 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)	15 years
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	18 years
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	39 years