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Note D - Property and Equipment - Property and Equipment (Details) - USD ($)
$ in Thousands
Jul. 31, 2022
Apr. 30, 2022
Less accumulated depreciation and amortization $ (42,042) $ (41,002)
Property and equipment, net 58,526 51,438
Land [Member]    
Property and equipment 12,455 11,749
Building and Building Improvements [Member]    
Property and equipment 15,291 13,876
Furniture, Fixtures and Equipment [Member]    
Property and equipment 17,029 16,189
Leasehold Improvements [Member]    
Property and equipment 39,092 36,392
Construction in Progress [Member]    
Property and equipment $ 16,701 $ 14,234