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Concentrations (Details) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2017 USD ($) Vendors | Mar. 31, 2016 USD ($) Vendors Customer | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($)
Concentrations (Textual) |  |  |  |
Cash and cash equivalents | $ 118,259,995 | $ 90,470,157 | $ 102,896,486 | $ 92,982,564
Supplier Concentration Risk [Member] |  |  |  |
Concentrations (Textual) |  |  |  |
Number of vendor | Vendors | 1 | 1 |  |
Total purchase amount | $ 8,670,903 |  |  |
Supplier Concentration Risk [Member] | Vendor One [Member] |  |  |  |
Concentrations (Textual) |  |  |  |
Concentration risk percentage | 15.40% |  |  |
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] |  |  |  |
Concentrations (Textual) |  |  |  |
Concentration risk percentage | 10.00% | 37.80% |  |
Number of customer | Customer |  | 1 |  |

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