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Concentrations and Risks (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Jun. 30, 2019
Concentration and Risks (Textual) |  |  |
Cash balance | $ 37,612,582 |  | $ 35,330,676
Total sales [Member] | Customer Four [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 10.00% |  |
Total sales [Member] | Customer Five [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 10.00% |  |
Total sales [Member] | Customer One [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 14.00% | 14.00% |
Total sales [Member] | Customer Two [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 12.00% | 14.00% |
Total sales [Member] | Customer Three [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 11.00% | 14.00% |
Total sales [Member] | Customer Four [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage |  | 12.00% |
Total sales [Member] | Customer Five [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage |  | 11.00% |
Accounts Receivable [Member] | Customer One [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 39.00% |  |
Accounts Receivable [Member] | Customer Two [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 39.00% |  |
Total purchases [Member] | Vendor One [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 39.00% | 38.00% |
Total purchases [Member] | Vendor Two [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 16.00% | 14.00% |
Total purchases [Member] | Vendor Three [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 12.00% | 11.00% |
China [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Cash balance | $ 37,591,678 |  | $ 35,311,106
China [Member] | Assets, Total [Member] |  |  |
Concentration and Risks (Textual) |  |  |
Concentration risk, percentage | 100.00% | 100.00% |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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