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Schedule of Components of Property and Equipment (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Apr. 30, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,056	$ 2,851
Less: accumulated depreciation	(1,839)	(1,571)
Property and equipment, net	2,217	1,280
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,491	783
Computer Equipment & Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	711	700
Office Furniture & Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	420	386
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	683	611
Leased WAM-V's [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	640	371
Leased Buoys [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 111

X

- 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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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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