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INVESTMENTS IN REAL ESTATE (Investments in Real Estate) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Properties owned, net of accumulated depreciation [Line Items]          
Real Estate Investment Property, Net $ 16,100   $ 16,100   $ 16,022
Rental income 1,900 $ 1,700 3,100 $ 2,900  
Hotel property (Savannah, Georgia)          
Properties owned, net of accumulated depreciation [Line Items]          
Real Estate Investment Property, Net 9,755   9,755   9,757
Office building (Philadelphia, Pennsylvania)          
Properties owned, net of accumulated depreciation [Line Items]          
Real Estate Investment Property, Net 908   908   877
Total Properties Owned          
Properties owned, net of accumulated depreciation [Line Items]          
Real Estate Investment Property, Net 10,663   10,663   10,634
Real Estate Accumulated Depreciation 10,039   10,039   9,752
Partnerships and other investments          
Properties owned, net of accumulated depreciation [Line Items]          
Real Estate Investment Property, Net $ 5,437   $ 5,437   $ 5,388