XML 42 R31.htm IDEA: XBRL DOCUMENT v3.23.1
Property, Plant and Equipment - Construction in progress (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Louisville, Colorado - 2nd cell pilot line    
Property, Plant and Equipment    
Construction in progress $ 2,010 $ 2,010
Louisville, Colorado - Other capital projects    
Property, Plant and Equipment    
Construction in progress 2,431 2,206
Thornton, Colorado - Increased electrolyte production scale    
Property, Plant and Equipment    
Construction in progress $ 29,053 $ 35,820