Other Long-Term Assets - Deposits (Details) - USD ($)		Dec. 31, 2018	Jun. 30, 2018
Other Long-term Assets - Deposits
Rental and utilities deposits		$ 59,763	$ 59,777
Freight logistic deposits	[1]	2,988,823	83,526
Total other long-term assets - deposits		$ 3,048,586	$ 143,303

[1] Certain customers require the Company to pay deposits for the security of shipments and merchandise. These deposits are refundable at the end of their respective contract term. Approximately $2.91 million (RMB 20 million) was paid to BaoSteel Resources Co., Ltd. according to the agreement entered in March 2018. This refundable deposit is to cover any possible loss of merchandise, as well as any non-performance on the part of the Company and its vendors.