Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Income Statement [Abstract]
Revenues	$ 200,000	$ 100,000	$ 350,000	$ 2,300,000
Operating expenses:
Selling expenses	(86,000)	(72,000)	(251,000)	(125,000)
General and administrative expenses	(635,282)	(629,934)	(1,824,577)	(1,710,942)
Total operating expenses	(721,282)	(701,934)	(2,075,577)	(1,835,942)
(Loss) income from operations	(521,282)	(601,934)	(1,725,577)	464,058
Other income (expenses):
Interest income, net			23	1,874
Other income, net	23,215	191,998	223,120	314,401
(Loss) income from investment in trading securities	(309,521)	82,265	(338,255)	101,381
Gain from disposal of subsidiaries				56,038
Total other (loss) income, net	(286,306)	274,263	(115,112)	473,694
(Loss) income before income taxes	(807,588)	(327,671)	(1,840,689)	937,752
Income tax provision		(8,099)		(575,056)
Net (loss) income and comprehensive (loss) income	$ (807,588)	$ (335,770)	$ (1,840,689)	$ 362,696
(Loss) earnings per share – basic (in Dollars per share)	$ (0.08)	$ (0.03)	$ (0.19)	$ 0.04
Weighted Average Shares Outstanding
Basic (in Shares)	9,799,195	9,627,452	9,670,270	9,627,452