BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Hotel income	$ 10,160	$ 9,832	$ 19,849	$ 19,582
Tenant recoveries outside of lease agreements	275	0	278	4
Performance obligations	123		123
Rental and other property income
Disaggregation of Revenue [Line Items]
Hotel income	733	738	1,496	1,490
Interest and other income
Disaggregation of Revenue [Line Items]
Hotel income	54	34	93	50
Hotel revenues
Disaggregation of Revenue [Line Items]
Hotel income	$ 10,947	$ 10,604	$ 21,438	$ 21,122