TAXES (Details) - USD ($)		12 Months Ended
May 01, 2016	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Reconciliation of statutory rate to effective tax rate
Value Added Tax rate (as a percent)	6.00%	6.00%
Surcharges on VAT payable (as a percent)	12.00%
Provision for income taxes		$ 76,264	$ 276,823	$ 716,816
Statutory income tax rate		25.00%	25.00%	25.00%
Rate differential		(12.60%)	15.80%
Permanent difference on non-deductible expenses		(0.10%)	0.10%	1.90%
Utilization of the VIE's Net Operating Loss ("NOL") from prior years			(1.70%)
Change in valuation allowance		(12.70%)
Effective tax rate		(0.40%)	39.20%	26.90%
Multi-Channel Advertising services
Reconciliation of statutory rate to effective tax rate
Culture construction fee surcharge (as a percent)	3.00%
Hong kong
Reconciliation of statutory rate to effective tax rate
Provision for income taxes		$ 0	$ 0	$ 0
Statutory income tax rate		16.50%

Percentage of surcharge on culture construction fee payable.

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Percentage of surcharge on Value Added Tax payable.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense.

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