Unaudited Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Income Statement [Abstract]
Revenues	$ 25,000	$ 1,900,000	$ 150,000	$ 2,200,000
Operating expenses:
Selling expenses	(93,000)	(48,000)	(165,000)	(53,000)
General and administrative expenses	(479,516)	(518,112)	(1,189,295)	(1,081,008)
Total operating expenses	(572,516)	(566,112)	(1,354,295)	(1,134,008)
(Loss) income from operations	(547,516)	1,333,888	(1,204,295)	1,065,992
Other income (expenses):
Interest (expenses) income, net	23	(57,973)	23	1,874
Other income (expenses), net	59,185	62,903	199,905	122,403
Income (loss) from investment in trading securities	80,670	39,120	(28,734)	19,116
Gain from disposal of subsidiaries				56,038
Total other income, net	139,878	44,050	171,194	199,431
(Loss) income before income taxes	(407,638)	1,377,938	(1,033,101)	1,265,423
Income tax provision		(566,957)		(566,957)
Net (loss) income and comprehensive (loss) income	$ (407,638)	$ 810,981	$ (1,033,101)	$ 698,466
(Loss) earnings per share – basic (in Dollars per share)	$ (0.04)	$ 0.08	$ (0.11)	$ 0.07
Basic (in Shares)	9,627,452	9,627,452	9,627,452	9,627,452