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Concentrations of Risk (Details)	6 Months Ended
	Dec. 31, 2019 USD ($) Customer Vendor	Dec. 31, 2018 Customer Vendor
Concentrations of risk (Textual)
Insurance coverage of each bank | $	$ 250,000
Accounts Payable Member
Concentrations of risk (Textual)
Concentration of credit risk, description	No vendor accounted for more than 10% of the total balance of accounts payable.	No vendor accounted for more than 10% of the total balance of accounts payable.
Total Revenue [Member] | One customer [Member]
Concentrations of risk (Textual)
Number of customers | Customer	2	4
Concentration of credit risk, percentage	19.60%	25.60%
Total Revenue [Member] | Two customer [Member]
Concentrations of risk (Textual)
Number of customers | Customer	2	4
Concentration of credit risk, percentage	14.80%	16.90%
Total Revenue [Member] | Four customer [Member]
Concentrations of risk (Textual)
Number of customers | Customer		4
Concentration of credit risk, percentage		10.90%
Total Revenue [Member] | Three customer [Member]
Concentrations of risk (Textual)
Number of customers | Customer		4
Concentration of credit risk, percentage		16.10%
Accounts Receivable [Member]
Concentrations of risk (Textual)
Concentration of credit risk, description	No customer accounted for more than 10% of the total balance of accounts receivable.	No customer accounted for more than 10% of the total balance of accounts receivable.
Total Purchase [Member] | One vendor [Member]
Concentrations of risk (Textual)
Number of vendors | Vendor	1	3
Concentration of credit risk, percentage	14.00%	14.10%
Total Purchase [Member] | Two vendor [Member]
Concentrations of risk (Textual)
Number of vendors | Vendor		3
Concentration of credit risk, percentage		10.40%
Total Purchase [Member] | Three vendor [Member]
Concentrations of risk (Textual)
Number of vendors | Vendor		3
Concentration of credit risk, percentage		10.00%
PRC [Member]
Concentrations of risk (Textual)
Deposited from banks | $	$ 23,000
Insurance coverage of each bank | $	72,000
RMB [Member] | PRC [Member]
Concentrations of risk (Textual)
Insurance coverage of each bank | $	$ 500,000

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- References

No definition available.

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The amount of insurance coverage of each bank.

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Represents the number of customers.

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No definition available.

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- Definition

Identifies or describes the benchmark that serves as the denominator in the calculation of the percentage of concentration risk.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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A bank's noninterest bearing demand deposits in other banks (such as correspondents).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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