v3.26.1
Investment in Ambler Metals LLC - Financial information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Nov. 30, 2025
Carrying value of investment in Ambler Metals          
Investment in Ambler Metals, Beginning     $ 105,263    
Share of loss on equity investment $ (2,334) $ (764) (3,677) $ (1,345)  
Investment in Ambler Metals, Ending 112,086   112,086    
Assets [Abstract]          
Cash and cash equivalents 38,838   38,838   $ 51,613
Total assets 151,195   151,195   157,304
Liabilities [Abstract]          
Total liabilities 35,272   35,272   33,183
Equity Method Investment, Nonconsolidated Investee or Group of Investees          
Assets [Abstract]          
Cash and cash equivalents 17,394   17,394   3,507
Mineral properties 30,899   30,899   30,899
Other assets 2,987   2,987   1,303
Total assets 51,280   51,280   35,709
Liabilities [Abstract]          
Accounts payable and accrued liabilities 2,543   2,543   961
Other liabilities 359   359   16
Total liabilities 2,902   2,902   977
Members' equity (total assets less total liabilities) 48,378   48,378   $ 34,732
Operating Income (Loss) [Abstract]          
Project costs     4,938    
Corporate costs     2,368    
Other items     48    
Comprehensive loss     7,354    
Ambler Metals LLC          
Carrying value of investment in Ambler Metals          
Investment in Ambler Metals, Beginning     105,263    
Joint venture equity contribution 10,500   10,500    
Share of loss on equity investment     (3,677)    
Investment in Ambler Metals, Ending $ 112,086   $ 112,086