Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($)	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Income Tax Disclosure [Abstract]
Federal U.S. Income Taxes, Current
Federal U.S. Income Taxes, Deferred
State Income Taxes, current
State Income Taxes, Deferred
Total Income Tax Expense