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Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives	9 Months Ended
	Jan. 31, 2015
Furniture, Fixtures, and Equipment [Member] | Minimum [Member]
Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives [Line Items]
Property, Plant and Equipment	3 years
Furniture, Fixtures, and Equipment [Member] | Maximum [Member]
Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives [Line Items]
Property, Plant and Equipment	7 years
Leasehold Improvements [Member] | Minimum [Member]
Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives [Line Items]
Property, Plant and Equipment	5 years
Leasehold Improvements [Member] | Maximum [Member]
Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives [Line Items]
Property, Plant and Equipment	15 years
Building and Building Improvements [Member] | Minimum [Member]
Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives [Line Items]
Property, Plant and Equipment	18 years
Building and Building Improvements [Member] | Maximum [Member]
Note B - Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives [Line Items]
Property, Plant and Equipment	39 years

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- Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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