Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net (Details)

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Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Components of property and equipment    
Total $ 1,012 $ 909
Less accumulated depreciation (908) (871)
Property and equipment, net 104 38
Vehicles [Member]    
Components of property and equipment    
Total 749 646
Computers and Office Equipment [Member]    
Components of property and equipment    
Total 93 93
Equipment [Member]    
Components of property and equipment    
Total $ 170 $ 170