Quarterly report pursuant to Section 13 or 15(d)

Sales (Details)

v3.19.1
Sales (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Sales    
Sales $ 4,812 $ 19,672
Disposal fee income   9
Sales Revenue, Goods, Net [Member]    
Sales    
Sales 2,406 237
Sale Of Purchased Inventory [Member]    
Sales    
Sales 2,406 19,426
Company A [Member]    
Sales    
Sales 2,406  
Company A [Member] | Sales Revenue, Goods, Net [Member]    
Sales    
Sales 2,406  
Company B [Member]    
Sales    
Sales   237
Company B [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Sales   15,636
Company C [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Sales   3,790
Company A, B, C, D [Member]    
Sales    
Sales $ 4,812 $ 19,663
Customer Concentration Risk [Member]    
Sales    
Concentration Risk, Percentage 100.00% 100.00%
Disposal Fees Concentration Risk Percentage 0.00% 0.00%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member]    
Sales    
Concentration Risk, Percentage 50.00% 1.20%
Customer Concentration Risk [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Concentration Risk, Percentage 50.00% 98.80%
Customer Concentration Risk [Member] | Company A [Member]    
Sales    
Concentration Risk, Percentage 50.00% 0.00%
Customer Concentration Risk [Member] | Company A [Member] | Sales Revenue, Goods, Net [Member]    
Sales    
Concentration Risk, Percentage 50.00% 0.00%
Customer Concentration Risk [Member] | Company B [Member]    
Sales    
Concentration Risk, Percentage 0.00% 1.20%
Customer Concentration Risk [Member] | Company B [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Concentration Risk, Percentage 0.00% 79.50%
Customer Concentration Risk [Member] | Company C [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Concentration Risk, Percentage 0.00% 19.30%
Customer Concentration Risk [Member] | Company A, B, C, D [Member]    
Sales    
Concentration Risk, Percentage 100.00% 100.00%