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v3.23.2

Note B - Summary of Significant Accounting Policies - Property and Equipment, Estimated Useful Lives (Details) | Apr. 30, 2023
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Furniture, Fixtures and Equipment [Member] | Minimum [Member] |
Statement [Line Items] |
Property, Plant and Equipment, Useful Life (Year) | 3 years
Furniture, Fixtures and Equipment [Member] | Maximum [Member] |
Statement [Line Items] |
Property, Plant and Equipment, Useful Life (Year) | 7 years
Leasehold Improvements [Member] | Minimum [Member] |
Statement [Line Items] |
Property, Plant and Equipment, Useful Life (Year) | 5 years
Leasehold Improvements [Member] | Maximum [Member] |
Statement [Line Items] |
Property, Plant and Equipment, Useful Life (Year) | 15 years
Building and Building Improvements [Member] | Minimum [Member] |
Statement [Line Items] |
Property, Plant and Equipment, Useful Life (Year) | 18 years
Building and Building Improvements [Member] | Maximum [Member] |
Statement [Line Items] |
Property, Plant and Equipment, Useful Life (Year) | 39 years

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- Definition Line items represent financial concepts included in a table. 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