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Note D - Property and Equipment (Details) - Property and equipment (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Apr. 30, 2013
Property and equipment [Abstract]    
Land $ 6,330 $ 6,211
Buildings and improvements 11,068 10,715
Furniture, fixtures and equipment 11,078 9,956
Leasehold improvements 18,555 15,874
Construction in progress 2,294 1,246
Less accumulated depreciation and amortization (16,088) (13,821)
$ 33,237 $ 30,181