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Income Taxes (Details Narrative) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	May 31, 2021	Jul. 31, 2022	Jul. 31, 2021	Apr. 30, 2021
Operating Loss Carryforwards [Line Items]
Proceed from sale of loss carryforwards and tax credits	$ 1,000
Income tax benefit			$ (1,041)
New Jersey Division of Taxation [Member]
Operating Loss Carryforwards [Line Items]
Operating loss				$ 12,000
Income tax benefit		$ 0

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Amount received from sale of net operating loss carryforwards and other tax credits.

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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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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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