Quarterly report pursuant to Section 13 or 15(d)

Mineral Properties (Details)

v3.22.2
Mineral Properties (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2022
USD ($)
Balance At Beginning Of Period $ 35,067
Depletion And Amortization 624
Balance At End Of Period 34,443
Lost Creek Property [Member]  
Balance At Beginning Of Period 4,527
Depletion And Amortization 624
Balance At End Of Period 3,903
Pathfinder Properties [Member]  
Balance At Beginning Of Period 17,362
Depletion And Amortization 0
Balance At End Of Period 17,362
Other U.S. Properties [Member]  
Balance At Beginning Of Period 13,178
Depletion And Amortization 0
Balance At End Of Period $ 13,178