Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) (Parenthetical)

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Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) (Parenthetical) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]    
Accumulated depreciation $ 10 $ 10