Quarterly report pursuant to Section 13 or 15(d)

Mineral Properties (Details)

v3.21.2
Mineral Properties (Details)
 9 Months Ended
Sep. 30, 2021
USD ($)
Change in estimated reclamation costs $ (930)
Reclassify assets held for sale (note 4) (1,536,000)
Balance at beginning of period 39,184,000
Depletion and amortization (1,525,000)
Balance at end of period 35,193,000
Lost Creek Property [Member]  
Change in estimated reclamation costs 0
Reclassify assets held for sale (note 4) 0
Balance at beginning of period 6,276,000
Depletion and amortization (1,525,000)
Balance at end of period 4,751,000
Pathfinder Properties [Member]  
Change in estimated reclamation costs (930)
Reclassify assets held for sale (note 4) (1,536,000)
Balance at beginning of period 19,730,000
Depletion and amortization 0
Balance at end of period 17,264,000
Other U.S. Properties [Member]  
Change in estimated reclamation costs 0
Reclassify assets held for sale (note 4) 0
Balance at beginning of period 13,178,000
Depletion and amortization 0
Balance at end of period $ 13,178,000