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Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
Customers
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Customers
Jan. 02, 2018
USD ($)
Summary of Significant Accounting Policies (Textual)            
Basic deposit coverage limits per owner and customer $ 250   $ 250      
Allowance for doubtful accounts 149   149   $ 149  
Net of allowance for doubtful accounts 1,800   1,800   1,000 $ 2,200
Costs capitalized in projects in process     0   1  
Foreign currency translation adjustments 13 $ 83 (417) $ 205    
Foreign currency transactions, general and administrative expenses 13 $ 45 34 $ 24    
Investment in joint venture $ 3   $ 3   3  
Equity ownership percentage 50.00%   50.00%      
Concentration risk, percentage 100.00% 100.00% 100.00% 100.00%    
Advertising costs $ 14 $ 216 $ 84 $ 529    
Noncontrolling interest owned by Pronode Technologies AB 51.00%   51.00%      
Noncontrolling interest owned by Propoint AB 49.00%   49.00%      
Noncontrolling interest, description     Noncontrolling interests' partners have less than 50% share of voting rights at any one of the subsidiary level companies.      
Deferred revenues $ 200   $ 200   $ 1,200 $ 900
Revenue not yet recognized     $ 500      
Deferred revenue expected percentage     100.00%      
Neoeye AB [Member]            
Summary of Significant Accounting Policies (Textual)            
Equity ownership percentage 50.00%   50.00%      
Net revenues [Member]            
Summary of Significant Accounting Policies (Textual)            
Concentration risk, percentage 10.00% 10.00% 10.00% 10.00%    
Accounts Receivable [Member]            
Summary of Significant Accounting Policies (Textual)            
Number of customer | Customers     4   2  
Concentration risk, percentage     73.00%   69.00%  
Hewlett Packard [Member] | Net revenues [Member]            
Summary of Significant Accounting Policies (Textual)            
Concentration risk, percentage 33.00% 30.00% 34.00% 31.00%    
Seiko Epson [Member] | Net revenues [Member]            
Summary of Significant Accounting Policies (Textual)            
Concentration risk, percentage 16.00% 12.00% 14.00%      
Canon [Member] | Net revenues [Member]            
Summary of Significant Accounting Policies (Textual)            
Concentration risk, percentage 10.00% 17.00% 13.00% 15.00%    
Faraday & Future Inc [Member] | Net revenues [Member]            
Summary of Significant Accounting Policies (Textual)            
Concentration risk, percentage 15.00%          
Bosch [Member] | Net revenues [Member]            
Summary of Significant Accounting Policies (Textual)            
Concentration risk, percentage 10.00% 11.00%   11.00%    
Sweden [Member]            
Summary of Significant Accounting Policies (Textual)            
Basic deposit coverage limits per owner and customer $ 100   $ 100      
Concentration risk, percentage     64.00%   71.00%  
Noncontrolling interest owned by Pronode Technologies AB 51.00%   51.00%      
Japan [Member]            
Summary of Significant Accounting Policies (Textual)            
Basic deposit coverage limits per owner and customer $ 10,000   $ 10,000      
Korea [Member]            
Summary of Significant Accounting Policies (Textual)            
Basic deposit coverage limits per owner and customer 50,000   50,000      
Taiwan [Member]            
Summary of Significant Accounting Policies (Textual)            
Basic deposit coverage limits per owner and customer $ 3,000   $ 3,000      
Maximum [Member]            
Summary of Significant Accounting Policies (Textual)            
Equity ownership percentage 50.00%   50.00%      
Warrant term     36 months      
Corporate income tax rate           35.00%
Minimum [Member]            
Summary of Significant Accounting Policies (Textual)            
Equity ownership percentage 20.00%   20.00%      
Warrant term     12 months      
Corporate income tax rate           21.00%