Quarterly report pursuant to Section 13 or 15(d)

Restricted Cash (Details)

v3.22.1
Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Restricted Cash (Details)    
Cash Pledged For Reclamation $ 8,020 $ 7,966
Restricted Cash $ 8,020 $ 7,966