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OPERATING SEGMENTS (Details 1) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Other non-segment items of income (expense)        
General and administrative $ (83) $ (93) $ (359) $ (342)
Net income fee (383) (53) (489) (189)
Advisory fee to related party (168) (166) (500) (493)
Other income 1,201 924 3,324 3,383
Net income 5,988 612 7,397 2,359
Other Segments [Member]        
Segment operating income 6,622 924 8,745 3,133
Other non-segment items of income (expense)        
General and administrative (83) (93) (359) (342)
Net income fee (383) (53) (489) (189)
Advisory fee to related party (168) (166) (500) (493)
Other income       250
Net income $ 5,988 $ 612 $ 7,397 $ 2,359