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Schedule of Investments and Unrealized Gains/Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Schedule of Investments [Line Items]
Amortized Cost		$ 27,790
Unrealized Gains (Losses)		158
Market Value		27,948
Corporate Bonds [Member]
Schedule of Investments [Line Items]
Amortized Cost		14,776
Unrealized Gains (Losses)		100
Market Value		14,876
Government Bonds and Notes [Member]
Schedule of Investments [Line Items]
Amortized Cost		9,188
Unrealized Gains (Losses)		33
Market Value		9,221
Government Agency [Member]
Schedule of Investments [Line Items]
Amortized Cost		3,826
Unrealized Gains (Losses)		25
Market Value		$ 3,851

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- Definition

Cost of the investment.

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