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Schedule of Available-for-sale Securities, Unrealized Loss Position (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Jul. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Debt securities, unrealized loss position	$ 178	$ 227
Debt securities, fair value	21,097	21,452
US Treasury Bill Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Debt securities, unrealized loss position	21	27
Debt securities, fair value	15,505	12,926
Government Sponsored Enterprise Notes [Member]
Debt Securities, Available-for-Sale [Line Items]
Debt securities, unrealized loss position	1	4
Debt securities, fair value	2,702	5,550
Corporate Bond Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Debt securities, unrealized loss position	156	196
Debt securities, fair value	$ 2,890	$ 2,976

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.

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