EARNINGS PER SHARE - Additional information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Class of Stock [Line Items]
Total cumulative preferred stock dividends in arrears			$ 8,813,292	$ 8,685,220
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
Stated percentage of preferred stock	6.00%	6.00%	6.00%	6.00%
Prior Cumulative Preferred Stock - Series A
Class of Stock [Line Items]
Number of common stock exchanged for each preferred stock held			1
Number of common stock exchanged for each preferred stock held			4
Prior Cumulative Preferred Stock - Series B
Class of Stock [Line Items]
Number of common stock exchanged for each preferred stock held			1
Number of common stock exchanged for each preferred stock held			3.75
5% Convertible Cumulative Preferred, $20 Par Value
Class of Stock [Line Items]
Redemption price per share (in dollars per share)	$ 21		$ 21
Preferred stock, liquidation preference per share (in dollars per share)	$ 20		$ 20
Number of common stock exchanged for each preferred stock held			1
Number of common stock exchanged for each preferred stock held			3.795
Stated percentage of preferred stock	5.00%	5.00%	5.00%	5.00%