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Significant Customers and Contingencies (Detail Narratives)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Dec. 31, 2016
USD ($)
Number of major customers     3 3  
Accounts receivable $ 2,199   $ 2,199   $ 434
Customers One [Member]          
Accounts receivable $ 1,410 $ 1,064 $ 1,410 $ 1,064  
Customers One [Member] | Customer Concentration Risk [Member] | Sales [Member]          
Revenue from top customers 72.00% 71.00% 70.00% 71.00%  
Customers Two [Member]          
Accounts receivable $ 212 $ 28 $ 212 $ 28  
Customers Two [Member] | Customer Concentration Risk [Member] | Sales [Member]          
Revenue from top customers 7.00% 1.00% 7.00% 2.00%  
Customers Three [Member]          
Accounts receivable $ 174 $ 212 $ 174 $ 212  
Customers Three [Member] | Customer Concentration Risk [Member] | Sales [Member]          
Revenue from top customers 5.00% 6.00% 5.00% 6.00%  
BASF [Member]          
Supply Agreement    

We currently have exclusive supply agreements with BASF Corporation (“BASF”), our largest customer, that have contingencies outlined which could potentially result in the license of technology and/or the sale of production equipment from the Company to the customer intended to provide capacity sufficient to meet the customer’s production needs.

   
Equipment sale - net book value equipment and upgrades 115.00%   115.00%    
Equipment sale - original book value of equipment and upgrades 30.00%   30.00%    
Equipment sale - net book value equipment 115.00%   115.00%    
BASF [Member] | Greater than [Member]          
Accelerated debt maturity - principal amount debt $ 10,000   $ 10,000    
BASF [Member] | Less than [Member]          
Cash, cash equivalents and investments $ 1,000   $ 1,000