Summary of Significant Accounting Policies (Details Textual) - USD ($)	1 Months Ended	3 Months Ended
	Dec. 22, 2017	Sep. 30, 2018	Jun. 30, 2018
Summary of Significant Accounting Policies (Textual)
Cash balance at U.S. financial institutions, not insured by the FDIC		$ 239,535	$ 6,205,960
Cash balance at U.S. financial institutions, FDIC insured amount		$ 167,283	$ 848,657
Percentage of business tax		5.00%
Percentage of construction taxes		7.00%
Percentage of education surcharges		3.00%
Unexercised options included in the computation of diluted earnings per share		52,090
Percentage of income tax		25.00%
Corporate tax rates effective during the period, description	The U.S. corporate tax rate decreased from 35% to 21%. As the Company has a June 30 fiscal year-end, the lower corporate income tax rate will be phased in, resulting in a U.S. statutory federal rate of approximately 28% for our fiscal year ending June 30, 2018, and 21% for subsequent fiscal years.
Compensation paid		<p style="margin: 0pt">The Hong Kong Deposit Protection Board pays compensation up to a limit of HKD $500,000 (approximately USD $64,000) if the bank with which an individual/a company hold its eligible deposit fails. As of September 30, 2018 and June 30, 2018, cash balance of $552,133 and $9,601, respectively, were maintained at financial institutions in Hong Kong and approximately $64,000 were insured by the Hong Kong Deposit Protection Board.</p>
Sino - China [Member]
Summary of Significant Accounting Policies (Textual)
Percentage of net income		90.00%