OTHER ASSETS (Details) - USD ($) $ in Thousands	Oct. 31, 2023	Apr. 30, 2023
OTHER ASSETS
Prepaid expenses	$ 1,004	$ 1,536
Miscellaneous assets	375	362
Less accumulated depreciation of property and equipment	(294)	(266)
Property and equipment, net	1,457	1,351
Total	2,836	3,249
Property
OTHER ASSETS
Property and equipment	1,289	1,251
Equipment
OTHER ASSETS
Property and equipment	$ 462	$ 366