DESCRIPTION OF BUSINESS (Details) a in Thousands, $ in Thousands, ft² in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) ft² a country property loan state	Dec. 31, 2023 USD ($)
Real Estate Properties
Number of commercial loan investment | loan	4
Investment in Alpine Income Property Trust, Inc. | $	$ 35,643	$ 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. | $	$ 35,643	$ 39,445
Investment ownership percentage (as a percent)	15.70%
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	20
Number of states in which entity operates | state	8
Gross leasable space | ft²	3.9
Number of preferred equity investment | property	1