OTHER ASSETS (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Apr. 30, 2021
OTHER ASSETS
Prepaid expenses	$ 324	$ 324
Receivables	58	37
Right-of-use assets associated with leases of office facilities	129	84
Other assets	80	172
Property and equipment	1,476	222
Less accumulated depreciation	(197)	(194)
Property and equipment, net	1,279	28
Other Assets	$ 1,870	$ 645