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Note D - Property and Equipment (Details) - Property and equipment (USD $)
In Thousands, unless otherwise specified
Jul. 31, 2013
Apr. 30, 2013
Property and equipment [Abstract]    
Land $ 6,211 $ 6,211
Buildings and improvements 10,873 10,715
Furniture, fixtures and equipment 10,269 9,956
Leasehold improvements 16,648 15,874
Construction in progress 1,706 1,246
Less accumulated depreciation and amortization (14,558) (13,821)
$ 31,149 $ 30,181