INCOME TAXES (Details) - USD ($)	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
INCOME TAXES
Effective Income Tax Rate, Percent	9.50%	2.00%
Current tax expense
Federal		$ (34,000)
State	$ 75,000	13,000
Current tax expense (benefit)	75,000	(21,000)
Deferred tax expense (benefit)
Federal		34,000
Deferred tax expense		34,000
Total income tax provision (benefit)	$ 75,000	$ 13,000