Annual report pursuant to Section 13 and 15(d)

Sales (Details)

v3.19.3.a.u2
Sales (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Sales      
Sales $ 32,255 $ 23,496 $ 38,368
Disposal fee income 3 43  
Sales Of Produced Inventory [Member]      
Sales      
Sales 9,889 237  
Sale Of Purchased Inventory [Member]      
Sales      
Sales 22,363 23,216  
Company A [Member] | Sales Of Produced Inventory [Member]      
Sales      
Sales 7,483    
Company B [Member] | Sales Of Produced Inventory [Member]      
Sales      
Sales 2,406    
Company B [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Sales 3,525    
Company C [Member] | Sales Of Produced Inventory [Member]      
Sales      
Sales   237  
Company D [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Sales 10,848 15,636  
Company E [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Sales 7,990 7,580  
Company A, B, C, D, E [Member]      
Sales      
Sales $ 32,252 $ 23,453  
Customer Concentration Risk [Member]      
Sales      
Concentration Risk, Percentage 100.00% 100.00%  
Disposal Fee Income Concentration Risk Percentage 0.0 0.2  
Customer Concentration Risk [Member] | Sales Of Produced Inventory [Member]      
Sales      
Concentration Risk, Percentage 30.70% 1.00%  
Customer Concentration Risk [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Concentration Risk, Percentage 69.30% 98.80%  
Customer Concentration Risk [Member] | Company A [Member] | Sales Of Produced Inventory [Member]      
Sales      
Concentration Risk, Percentage 23.20% 0.00%  
Customer Concentration Risk [Member] | Company B [Member] | Sales Of Produced Inventory [Member]      
Sales      
Concentration Risk, Percentage 7.50% 0.00%  
Customer Concentration Risk [Member] | Company B [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Concentration Risk, Percentage 10.90% 0.00%  
Customer Concentration Risk [Member] | Company C [Member] | Sales Of Produced Inventory [Member]      
Sales      
Concentration Risk, Percentage 0.00% 1.00%  
Customer Concentration Risk [Member] | Company D [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Concentration Risk, Percentage 33.60% 66.50%  
Customer Concentration Risk [Member] | Company E [Member] | Sale Of Purchased Inventory [Member]      
Sales      
Concentration Risk, Percentage 24.80% 32.30%  
Customer Concentration Risk [Member] | Company A, B, C, D, E [Member]      
Sales      
Total sales, risk percent 100.00% 99.80%