Annual report pursuant to Section 13 and 15(d)

Inventory (Details)

v3.19.3.a.u2
Inventory (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Inventory    
Inventory, Net, Total $ 7,426 $ 14,692
Inventory Current   1,840
Inventory, Noncurrent 7,426 12,852
Reduction in inventory valuation 10,300  
In Process Inventory [Member]    
Inventory    
Inventory, Net, Total   160
Plant Inventory [Member]    
Inventory    
Inventory, Net, Total   345
Conversion Facility Inventory [Member]    
Inventory    
Inventory, Net, Total $ 7,426 $ 14,187