INCOME TAXES (STATUTORY RATE RECONCILATION) (Details) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Income Tax Reconciliation
Computed tax expense at statutory rates	$ 283,000	$ 98,000
Permanent differences	8,000	9,000
State tax and credits	37,000	13,000
Provision to Return Adjustment	(2,000)	20,000
State Rate Adjustment		11,000
Increase in valuation allowance	2,000	14,000
Total income tax provision	$ 328,000	$ 165,000