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Significant Customers and Contingencies (Detail Narratives)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Number of major customers 3 3 3 3
Accounts receivable $ 1,581   $ 1,581  
Customers One [Member]        
Accounts receivable $ 1,078 $ 784 $ 1,078 $ 784
Customers One [Member] | Customer Concentration Risk [Member] | Sales [Member]        
Revenue from top customers 58.00% 65.00% 67.00% 69.00%
Customers Two [Member]        
Accounts receivable $ 222 $ 69 $ 222 $ 69
Customers Two [Member] | Customer Concentration Risk [Member] | Sales [Member]        
Revenue from top customers 8.00% 4.00% 7.00% 3.00%
Customers Three [Member]        
Accounts receivable $ 102 $ 122 $ 102 $ 122
Customers Three [Member] | Customer Concentration Risk [Member] | Sales [Member]        
Revenue from top customers 4.00% 5.00% 4.00% 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