REAL ESTATE (Hotel Revenue and Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Hotel expenses:
General and administrative expenses	$ 3,475	$ 2,866	$ 3,199
Hotel
Revenues:
Revenue from contract with customer	31,381	32,666	28,994
Hotel expenses:
Expenses	22,770	22,907	19,187
General and administrative expenses	2,917	2,919	2,357
Sales and marketing	3,260	3,069	2,642
Repairs and maintenance	2,099	2,362	1,815
Property taxes and insurance	1,743	1,749	1,799
Hotel | Springmaid Beach Resort
Hotel expenses:
Business interruption insurance recovery			5,800
Hotel | Room
Revenues:
Revenue from contract with customer	23,513	24,620	17,216
Hotel expenses:
Expenses	5,984	6,157	4,759
Hotel | Food, beverage and convention services
Revenues:
Revenue from contract with customer	5,030	5,263	3,761
Hotel expenses:
Expenses	4,023	4,077	3,179
Hotel | Campground
Revenues:
Revenue from contract with customer	1,105	1,176	1,127
Hotel | Other
Revenues:
Revenue from contract with customer	1,733	1,607	6,890
Hotel expenses:
Expenses	1,571	1,367	1,603
Hotel | Utilities
Hotel expenses:
Expenses	$ 1,173	$ 1,207	$ 1,033