Schedule of Components of Property and Equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Apr. 30, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,416	$ 2,851
Less: accumulated depreciation	(1,973)	(1,571)
Property and equipment, net	3,443	1,280
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,530	783
Computer Equipment & Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	790	700
Office Furniture & Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	422	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	1,547	371
Leased Buoys [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 444