TAXES - Provision for Income Tax (Details) - USD ($)	12 Months Ended
Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Current income tax provision
China	$ 276,823	$ 716,816	$ 217,025
Subtotal	276,823	716,816	217,025
Deferred income tax provision
Total income tax provision	276,823	716,816	217,025
Hong kong
Deferred income tax provision
Total income tax provision	$ 0	$ 0	$ 0

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
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-Subparagraph (SAB Topic 6.I.7)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration