ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Apr. 30, 2021
ACCOUNTS PAYABLE AND ACCRUED EXPENSES
Total	$ 4,758	$ 4,458
Real estate operations
ACCOUNTS PAYABLE AND ACCRUED EXPENSES
Accrued expenses	866	658
Trade payables	2,117	1,377
Real estate customer deposits	1,378	1,769
Total	4,361	3,804
Corporate
ACCOUNTS PAYABLE AND ACCRUED EXPENSES
Total	$ 397	$ 654