Quarterly report pursuant to Section 13 or 15(d)

Sales (Details)

v3.4.0.3
Sales (Details)
$ in Thousands
 1 Months Ended 3 Months Ended
Mar. 31, 2016
item
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Sales      
Number of Sales Contracts with Delivery Obligations | item 2    
Disposal fees   $ 5 $ 7
Sales Revenue, Goods, Net [Member]      
Sales      
Sales Revenue, Goods, Net   2,709 7,380
Company A [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Sales Revenue, Goods, Net   1,725  
Company B [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Sales Revenue, Goods, Net   $ 984 1,282
Company C [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Sales Revenue, Goods, Net     $ 6,098
Customer Concentration Risk [Member]      
Sales      
Concentration Risk, Percentage   100.00% 100.00%
Disposal Fees Concentration Risk Percentage   0.20% 0.10%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Concentration Risk, Percentage   99.80% 99.90%
Customer Concentration Risk [Member] | Company A [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Concentration Risk, Percentage   63.50% 0.00%
Customer Concentration Risk [Member] | Company B [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Concentration Risk, Percentage   36.30% 17.40%
Customer Concentration Risk [Member] | Company C [Member] | Sales Revenue, Goods, Net [Member]      
Sales      
Concentration Risk, Percentage   0.00% 82.50%