Note D - Property and Equipment, Net - Property and Equipment (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Apr. 30, 2024
Less accumulated depreciation and amortization	$ (51,759)	$ (49,906)
Total	59,793	60,361
Land [Member]
Property and equipment	11,998	11,998
Building and Building Improvements [Member]
Property and equipment	23,436	23,435
Furniture, Fixtures and Equipment [Member]
Property and equipment	22,094	21,752
Leasehold Improvements [Member]
Property and equipment	50,768	50,689
Construction in Progress [Member]
Property and equipment	$ 3,256	$ 2,393