REAL ESTATE INVENTORY - Additional Information (Details) - USD ($)	12 Months Ended
Apr. 30, 2021	Apr. 30, 2020
REAL ESTATE INVENTORY
Interest and loan costs	$ 105,000	$ 182,000
Real Estate taxes capitalized in real estate inventory	$ 29,000	$ 78,000

The amount of interest capitalized to an operative builder's inventory during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

Name:	us-gaap_RealEstateInventoryCapitalizedInterestCostsIncurred
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration