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Schedule of Components of Property and Equipment (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Apr. 30, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,981	$ 2,030
Less: accumulated depreciation	(1,475)	(1,585)
Property and equipment, net	506	445
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	806	615
Computer Equipment & Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	596	571
Office Furniture & Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	61	352
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	503	477
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 15	$ 15

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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