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Investments (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Apr. 30, 2023
Long-term investments:
Equity Method Investments.	$ 19,933	$ 18,644
Total long-term investments	$ 20,960	$ 23,613
Investment, Type [Extensible Enumeration]	Available-for-sale securities.	Available-for-sale securities.
Equity securities and warrants
Long-term investments:
Total long-term investments	$ 1,027	$ 4,969
Investment in limited partnership fund
Long-term investments:
Equity Method Investments.	19,933	18,644
Available-for-sale securities.
Long-term investments:
Total long-term investments	$ 1,027	$ 4,969

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- Definition

Indicates type of investment. Includes, but is not limited to, common stock, preferred stock, convertible security, fixed income security, government security, option purchased, warrant, loan participation and assignment, commercial paper, bankers' acceptance, certificates of deposit, short-term security, repurchase agreement, and other investment company.

+ References

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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