Quarterly report pursuant to Section 13 or 15(d)

Inventory (Details)

v3.21.2
Inventory (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Current portion of inventory $ 7,922,000 $ 7,814,000
Inventory, Net, Total 7,922,000 7,814,000
Plant Inventory [Member]    
Inventory, Net, Total 0 463,000
Conversion Facility Inventory [Member]    
Inventory, Net, Total 7,922,000 7,351,000
Non-current portion of inventory [Member]    
Inventory, Net, Total $ 7,922,000 $ 7,814,000