v3.26.1
MINERAL PROPERTIES (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended 12 Months Ended 27 Months Ended
May 15, 2026
Aug. 21, 2023
Mar. 18, 2022
Jun. 30, 2026
Dec. 31, 2025
May 31, 2015
Jan. 31, 2026
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Payments to acquire mineral rights       $ 2,839 $ 1,312    
Nuton LLC [Member] | Option to Earn-in Agreement [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Option to earn interest in assets     65.00%        
Development costs     $ 59,000        
Nuton LLC [Member] | Option to Earn-in Agreement [Member] | Work program stage three [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Feasibility study             $ 30,500
Cumulative funding received       $ 58,500      
Singatse Peak Services [Member] | Macarthur and Yerington properties [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Ownership interest       100.00%      
Singatse Peak Services [Member] | MacArthur Project [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Net smelter return royalty       2.00%      
Potential net smelter return royalty in exchange for consideration       1.00%      
Consideration required for decreased net smelter return royalty       $ 1,000      
Singatse Peak Services [Member] | Yerington Property [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Net smelter return royalty       2.00%      
Total lifetime royalty cap       $ 7,500      
Option agreement, obligated cash payments $ 100            
Subsequent annual payments 100            
Option exercised on or before October 31, 2026 16,000            
Option exercised on or before October 31, 2027 16,000            
Option exercised on or before October 31, 2028 17,000            
Option exercised on or before October 31, 2029 $ 18,000            
Singatse Peak Services [Member] | Bear [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Ownership option           100.00%  
Net smelter return royalty           2.00%  
Potential net smelter return royalty in exchange for consideration           1.00%  
Consideration required for decreased net smelter return royalty           $ 1,250  
Option agreement, obligated cash payments       252   5,988  
Payments to acquire mineral rights       2,806 1,312 $ 5,966  
Option agreement, obligated cash payments next year       100      
Option agreement, obligated cash payments next two years       51      
Option agreement, obligated cash payments next three years       50      
Payments to acquire land       4,372 1,312    
Singatse Peak Services [Member] | Bear [Member] | Minimum [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Option agreement, obligated cash payments       6,250      
Singatse Peak Services [Member] | Bear [Member] | Maximum [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Option agreement, obligated cash payments       $ 22,770      
Singatse Peak Services [Member] | Wassuk [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Net smelter return royalty       3.00%      
Potential net smelter return royalty in exchange for consideration       2.00%      
Consideration required for decreased net smelter return royalty       $ 1,500      
Payments to acquire mineral rights       0 0    
Singatse Peak Services [Member] | Copper Canyon [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Payments to acquire mineral rights       $ 0 $ 0    
Singatse Peak Services [Member] | Copper Canyon [Member] | Convergent Mining, LLC [Member]              
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Line Items]              
Consideration transferred   $ 10          
Fees and reimburse convergent percent   5.00%          
Exploration expenditures   $ 2,000          
Maximum exploration costs   $ 100