DESCRIPTION OF BUSINESS (Details) a in Thousands, $ in Thousands, ft² in Millions	9 Months Ended
	Sep. 30, 2024 USD ($) ft² a property loan country state	Dec. 31, 2023 USD ($)
Real Estate Properties
Number of commercial loan investments | loan	4
Investment in Alpine Income Property Trust, Inc. | $	$ 42,997	$ 39,445
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units
Real Estate Properties
Investment in Alpine Income Property Trust, Inc. | $	$ 42,997	$ 39,445
Investment ownership percentage (as a percent)	15.30%
Conversion ratio on merger	1
Florida
Real Estate Properties
Number of states in which entity operates | country	19
Subsurface area of portfolio of mineral interests | a	352
Commercial
Real Estate Properties
Number of real estate properties | property	22
Number of states in which entity operates | state	7
Gross leasable space | ft²	4.6
Number of preferred equity investment | property	2