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Segment Reporting - Schedule of Reconciliation of Segment Data to Consolidated Net Loss Before Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Segment Reporting [Abstract]        
Total net loss before income taxes for reportable segments $ 6 $ (208) $ (188) $ (631)
Unallocated cost of corporate headquarters (233) (376) (1,030) (883)
Consolidated loss before income taxes $ (227) $ (584) $ (1,218) $ (1,514)