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Commitments - Schedule of Property Held Under Capital Leases (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Accumulated depreciation $ (322) $ (185)
Total 290 393
Office Equipment [Member]    
Capital leased equipment gross 362 328
Site Equipment [Member]    
Capital leased equipment gross $ 250 $ 250