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OPERATING SEGMENTS (Details 2) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Real estate assets $ 22,717 $ 22,717  
Notes and interest receivable 14,015 14,030  
Total assets 89,308 $ 87,897  
Total Segments [Member]      
Real estate assets 22,717   $ 22,717
Notes and interest receivable 14,015   15,061
Other assets 52,576   50,357
Total assets $ 89,308   $ 88,135