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Marketable Securities (Details) - Schedule of investment income - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024
Marketable securities:
Dividend and interest income	$ 7,979	$ 7,617	$ 16,406	$ 74,053
Net realized gain on sale of marketable securities				149,260
Net unrealized loss on marketable securities		(11,633)		(119,284)
Total	$ 7,979	$ (4,016)	$ 16,406	$ 104,029

X

- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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- Definition

Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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Amount of unrealized gain (loss) on investment in marketable security.

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