INVESTMENT SECURITIES - General Information (Details) - USD ($) $ in Thousands		6 Months Ended	9 Months Ended	12 Months Ended		55 Months Ended
	Nov. 26, 2019	Jun. 30, 2024	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Investment in Alpine Income Property Trust, Inc.		$ 36,561				$ 36,561	$ 39,445
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Number of shares owned		2,350,000				2,350,000
Investment in Alpine Income Property Trust, Inc.		$ 36,561				$ 36,561	39,445
Investment ownership percentage (as a percent)		15.80%				15.80%
Common Stock
Marketable Securities [Line Items]
Share purchased	421,053	16,983	129,271	155,665	8,088	1,125,797
Investment in Alpine Income Property Trust, Inc.		$ 17,518				$ 17,518	18,750
Investment ownership percentage (as a percent)		7.60%				7.60%
Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Share purchased						1,223,854
Investment in Alpine Income Property Trust, Inc.		$ 19,043				$ 19,043	$ 20,695
Investment ownership percentage (as a percent)		8.20%				8.20%