Preferred Stock - Schedule of Series A Preferred Stock (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Oct. 02, 2017
Class of Stock [Line Items]
Shares Authorized (in shares)	500,000	500,000
Stated Value per Share (in US$ per share)	$ 1.00	$ 1.00
Carrying Value	$ 15,000	$ 15,000
Liquidation Preference	$ 16,752,000	$ 16,178,000
Preferred Stock, outstanding (in shares)	14,700	14,700
Series A Preferred Stock
Class of Stock [Line Items]
Shares Authorized (in shares)	21,000
Stated Value per Share (in US$ per share)	$ 1,140		$ 1,000
Carrying Value	$ 16,752,000
Cumulative Preferred Dividends, Undeclared and Unpaid	2,052,150
Liquidation Preference	$ 16,752,000
Preferred Stock, outstanding (in shares)	14,700