INVESTMENT SECURITIES - General Information (Details) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended		58 Months Ended
	Nov. 26, 2019	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Investment in Alpine Income Property Trust, Inc.		$ 42,997				$ 42,997	$ 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		2,360,000				2,360,000
Investment ownership percentage (as a percent)		15.30%				15.30%
Investment in Alpine Income Property Trust, Inc.		$ 42,997				$ 42,997	39,445
Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Investment ownership percentage (as a percent)		7.90%				7.90%
Investment in Alpine Income Property Trust, Inc.		$ 22,274				$ 22,274	20,695
Share purchased						1,223,854
Common Stock
Marketable Securities [Line Items]
Investment ownership percentage (as a percent)		7.40%				7.40%
Investment in Alpine Income Property Trust, Inc.		$ 20,723				$ 20,723	$ 18,750
Share purchased	421,053	29,807	129,271	155,665	8,088	1,138,621