7. INCOME TAXES (Details Narrative) - USD ($)	12 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2016
Unrecognized tax benefits from uncertain tax positions	$ 0	$ 0	$ 0
Income tax penalties or interest	0	0	$ 0
Income tax penalties or interest accrued	$ 0	$ 0
U.S. corporate income tax rate	21.00%
Domestic Country [Member]
Net operating loss carry forward	$ 433,705,000
Operating loss carryforward expiration dates	2019 through 2037
State and Local Jurisdiction [Member]
Net operating loss carry forward	$ 273,091,000
Operating loss carryforward expiration dates	2029