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INVESTMENTS AND FAIR VALUE MEASUREMENTS - NARRATIVE (Details) - USD ($)	Jul. 31, 2025	Apr. 30, 2025
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, total aggregated loss	$ 100,000	$ 100,000
Credit-related impairment losses	0	0
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Fair value of available-for-sale debt securities in unrealized loss position, Total	10,600,000	10,600,000
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Fair value of available-for-sale debt securities in unrealized loss position, Total	$ 0	$ 0

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