SHARE ISSUANCE AND REPURCHASE (Details) - USD ($)		2 Months Ended	6 Months Ended		12 Months Ended
	Jul. 31, 2020	Jun. 30, 2021	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Nov. 30, 2023	Sep. 30, 2023	Jul. 31, 2022	Nov. 30, 2021	Oct. 04, 2021
Class of Stock [Line Items]
Shares repurchased during period, value			$ 3,600,000	$ 2,000,000
Shares repurchased during period, shares			310,285	215,160
Equity and Debt Securities Repurchase Program
Class of Stock [Line Items]
Stock repurchase program, authorized amount (up to)						$ 10,000,000			$ 20,000,000.0
Stock repurchase program, remaining authorized repurchase amount			$ 4,100,000
Note and Warrant Purchase Agreement | Oaktree and MassMutual
Class of Stock [Line Items]
Warrant exercise price	$ 0.03
Warrants recorded in additional paid-in capital, fair value	$ 3,100,000
Warrants expiration term	7 years
Note and Warrant Purchase Agreement | Oaktree
Class of Stock [Line Items]
Warrants issued to purchase common stock	391,995
Purchase price of common stock for warrants issued	$ 42,000,000.0
Warrants exercised			0
Note and Warrant Purchase Agreement | MassMutual
Class of Stock [Line Items]
Warrants issued to purchase common stock	74,666
Purchase price of common stock for warrants issued	$ 8,000,000.0
Warrants to purchase shares of common stock								74,666
7.875% Series D Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)		4,600,000	4,507,857		4,607,857
Preferred stock, coupon authorized		7.875%	7.875%		7.875%
Offering price		$ 25.00
Proceeds from issuance of preferred stock, net		$ 110,400,000
Underwriting discounts and other offering expenses		$ 4,600,000
Preferred stock, liquidation preference (in dollars per share)			$ 25		$ 25		$ 25.00
Preferred stock, shares outstanding (in shares)			4,507,857		4,607,857
Series D Preferred Stock
Class of Stock [Line Items]
Preferred shares repurchased duringperiod, value			$ 2,200,000
Preferred shares repurchased during period, shares			100,000
Series D Preferred Stock | Equity Distribution Agreement
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)			0		0
Series D Preferred Stock | Equity Distribution Agreement | Maximum | JonesTrading Institutional Services LLC
Class of Stock [Line Items]
Number of shares that may be issued or sold from time to time under agreement										2,200,000
Commission fee payable of gross proceeds from sale of stock in percentage										3.00%
8.625% Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)			4,800,000		4,800,000
Preferred stock, coupon authorized			8.625%		8.625%
Preferred stock, liquidation preference (in dollars per share)			$ 25		$ 25
Preferred stock, shares outstanding (in shares)			4,800,000		4,800,000
Preferred stock, weighted average issuance price (in dollars per share)			$ 25.00
8.625% Series C Preferred Stock | Secured Overnight Financing Rate (SOFR)
Class of Stock [Line Items]
Dividend payment rate, variable, basis spread on variable rate			5.927%