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Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
USD ($)
ft²
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
ft²
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Summary of Significant Accounting Policies (Textual)          
Asset impairment charges $ 675 $ 675 $ 1,000
Area of land | ft² 134,400   134,400    
Revenue recognized $ 56 $ 3 $ 56 $ 29  
Total value of the contract 4,700   4,700    
Value of contract recorded     4,700    
Estimated contract value         243
Gain on disposal of assets     1,600    
Total net book value $ 1,500   $ 1,500    
Additional impairment charges         $ 4,000
Malaysia [Member]          
Summary of Significant Accounting Policies (Textual)          
Area of land | ft² 65,000   65,000    
Total net book value $ 131   $ 131