EARNINGS PER SHARE - Additional information (Details)	6 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Class of Stock [Line Items]
Total cumulative preferred stock dividends in arrears | $	$ 8,653,202	$ 8,525,130
6% Prior Cumulative Preferred, $5 par value
Class of Stock [Line Items]
Redemption price per share (in dollars per share)	$ 5.25	$ 5.25
Preferred stock, liquidation preference per share (in dollars per share)	$ 5.25	$ 5.25
Prior Cumulative Preferred Stock - Series A
Class of Stock [Line Items]
Number of common stock exchanged for each preferred stock held | shares	1	1
Number of common stock exchanged for each preferred stock held	4	4
Prior Cumulative Preferred Stock - Series B
Class of Stock [Line Items]
Number of common stock exchanged for each preferred stock held | shares	1	1
Number of common stock exchanged for each preferred stock held	3.75	3.75
5% Convertible Cumulative Preferred, $20 Par Value
Class of Stock [Line Items]
Redemption price per share (in dollars per share)	$ 21.00	$ 21.00
Preferred stock, liquidation preference per share (in dollars per share)	$ 20.00	$ 20.00
Number of common stock exchanged for each preferred stock held | shares	1	1
Number of common stock exchanged for each preferred stock held	3.795	3.795