Quarterly report pursuant to Section 13 or 15(d)

Sales (Details)

v3.20.1
Sales (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Sales    
Sales $ 1,370 $ 4,812
Sales Of Produced Inventory [Member]    
Sales    
Sales   2,406
Sale Of Purchased Inventory [Member]    
Sales    
Sales 1,370 2,406
Company A [Member] | Sales Of Produced Inventory [Member]    
Sales    
Sales   2,406
Company A [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Sales   $ 2,406
Company D [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Sales $ 1,370  
Customer Concentration Risk [Member]    
Sales    
Concentration Risk, Percentage 100.00% 100.00%
Customer Concentration Risk [Member] | Sales Of Produced Inventory [Member]    
Sales    
Concentration Risk, Percentage 0.00% 50.00%
Customer Concentration Risk [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Concentration Risk, Percentage 100.00% 50.00%
Customer Concentration Risk [Member] | Company A [Member] | Sales Of Produced Inventory [Member]    
Sales    
Concentration Risk, Percentage 0.00% 50.00%
Customer Concentration Risk [Member] | Company A [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Concentration Risk, Percentage 0.00% 50.00%
Customer Concentration Risk [Member] | Company D [Member] | Sale Of Purchased Inventory [Member]    
Sales    
Concentration Risk, Percentage 100.00% 0.00%