BUSINESS SEGMENT DATA - Identifiable Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
BUSINESS SEGMENT DATA
Total Assets	$ 578,986	$ 564,560
Corporate and Other
BUSINESS SEGMENT DATA
Total Assets	32,371	24,025
Income Properties | Operating Segments
BUSINESS SEGMENT DATA
Total Assets	456,650	503,151
Commercial Loan Investments | Operating Segments
BUSINESS SEGMENT DATA
Total Assets	$ 89,965	$ 37,384