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Income Taxes (Details) - Schedule of Effective Income Tax Rate Reconciliation - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Schedule of Effective Income Tax Rate Reconciliation [Abstract]
Statutory rate	$ (2,471)	$ (519)
State and local tax	(417)	(32)
Valuation allowance on deferred tax assets	2,009	1,419
Effect of foreign operations	0	(51)
Nondeductible expenses	(134)	87
Sale of Subsidiary Stock	0	(863)
Uncertain tax positions	0	101
Nontaxable life insurance cash value increase	(73)	(120)
Tax credits	(46)	(28)
Change in tax rate	(120)	225
Impact of CARES Act	(592)	0
Other items	102	(163)
Total (benefit) expense	$ (1,742)	$ 56

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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

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