GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019
General and Administrative Expense, Disclosure [Line Items]
General and administrative expenses	$ 1,523	$ 4,121	$ 2,967	$ 5,687
Land Development
General and Administrative Expense, Disclosure [Line Items]
General and administrative expenses	665	602	1,271	1,274
Homebuilding
General and Administrative Expense, Disclosure [Line Items]
General and administrative expenses	118	0	231	0
Corporate
General and Administrative Expense, Disclosure [Line Items]
General and administrative expenses	$ 740	$ 3,519	$ 1,465	$ 4,413