Quarterly report pursuant to Section 13 or 15(d)

Sales (Details)

v3.10.0.1
Sales (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Sales        
Revenue, Net, Total $ 3 $ 11,693 $ 23,482 $ 38,342
Disposal fee income     29 52
Sales Revenue, Goods, Net [Member]        
Sales        
Sales Revenue, Goods, Net     237 12,739
Sale Of Purchased Inventory [Member]        
Sales        
Sales Revenue, Goods, Net     23,216 25,551
Company A [Member] | Sales Revenue, Goods, Net [Member]        
Sales        
Sales Revenue, Goods, Net     237  
Company B [Member]        
Sales        
Sales Revenue, Goods, Net       1,777
Company B [Member] | Sale Of Purchased Inventory [Member]        
Sales        
Sales Revenue, Goods, Net     15,636 15,340
Company C [Member]        
Sales        
Sales Revenue, Goods, Net       3,141
Company C [Member] | Sale Of Purchased Inventory [Member]        
Sales        
Sales Revenue, Goods, Net     7,580 10,211
Company D [Member]        
Sales        
Sales Revenue, Goods, Net       7,821
Company A, B, C, D [Member]        
Sales        
Sales Revenue, Goods, Net     $ 23,453 $ 38,290
Customer Concentration Risk [Member]        
Sales        
Concentration Risk, Percentage     100.00% 100.00%
Disposal Fees Concentration Risk Percentage     0.10% 0.10%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member]        
Sales        
Concentration Risk, Percentage     1.00% 33.20%
Customer Concentration Risk [Member] | Sale Of Purchased Inventory [Member]        
Sales        
Concentration Risk, Percentage     98.90% 66.70%
Customer Concentration Risk [Member] | Company A [Member] | Sales Revenue, Goods, Net [Member]        
Sales        
Concentration Risk, Percentage     1.00% 0.00%
Customer Concentration Risk [Member] | Company B [Member]        
Sales        
Concentration Risk, Percentage     0.00% 4.60%
Customer Concentration Risk [Member] | Company B [Member] | Sale Of Purchased Inventory [Member]        
Sales        
Concentration Risk, Percentage     66.60% 40.00%
Customer Concentration Risk [Member] | Company C [Member]        
Sales        
Concentration Risk, Percentage     0.00% 8.20%
Customer Concentration Risk [Member] | Company C [Member] | Sale Of Purchased Inventory [Member]        
Sales        
Concentration Risk, Percentage     32.30% 26.70%
Customer Concentration Risk [Member] | Company D [Member]        
Sales        
Concentration Risk, Percentage     0.00% 20.40%
Customer Concentration Risk [Member] | Company A, B, C, D [Member]        
Sales        
Concentration Risk, Percentage     99.90% 99.90%