Investment in Marketable Securities - Schedule of Trading Securities (Details) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020
Net unrealized loss	$ (253,000)	$ (145,000)
Corporate Equities [Member]
Cost	13,793,000		$ 11,459,000
Gross unrealized gain	1,116,000		902,000
Gross unrealized loss	(6,243,000)		(6,183,000)
Net unrealized loss	(5,127,000)		(5,281,000)
Fair value	$ 8,666,000		$ 6,178,000