XML 207 R35.htm IDEA: XBRL DOCUMENT v3.26.1
Mineral Properties and Interest (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 22, 2024
Mar. 21, 2024
Dec. 31, 2025
Dec. 31, 2024
Mineral Properties and Interest        
Mineral properties and interest     $ 67,680 $ 66,786
Payments to Acquire Mineral Rights $ 1,900   $ 360 2,301
Proceeds from sale of silver royalty       8,335
Annual payments due under option agreements       $ 30
Franco-Nevada Idaho Corporation        
Mineral Properties and Interest        
Percentage of net smelter returns (NSR) royalty   100.00%    
Gross proceeds from royalty   $ 8,500    
Incurred costs   $ 200    
Stibnite Gold Project        
Mineral Properties and Interest        
Percentage of net smelter returns (NSR) royalty     1.70%