Significant Accounting Policies (Cash and Cash Equivalents) (Details) - USD ($)	9 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018
Accounting Policies [Abstract]
Restricted Cash	$ 255,092	$ 253,135	$ 252,348	$ 250,000
Maximum maturity of highly liquid investments, period	90 days