Quarterly report pursuant to Section 13 or 15(d)

Mineral Properties (Details)

v3.24.1.u1
Mineral Properties (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
USD ($)
Beginning balance $ 34,906
Change in estimated reclamation costs 10
Depletion And Amortization 22
Ending balance 34,938
Shirley Basin [Member]  
Beginning balance 17,726
Change in estimated reclamation costs 10
Depletion And Amortization 0
Ending balance 17,736
Lost Creek Property [Member]  
Beginning balance 2,466
Change in estimated reclamation costs 0
Depletion And Amortization 22
Ending balance 2,488
Other U.S. Properties [Member]  
Beginning balance 14,714
Change in estimated reclamation costs 0
Depletion And Amortization 0
Ending balance $ 14,714