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Note 5 - Investment in Galore Creek - Summary of the Company's Investment in GCP (Details) - USD ($)
$ in Thousands
 3 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Nov. 30, 2017
$ (2,094) $ (2,232)  
Galore Creek [Member]      
Balance – beginning of period 251,461 241,404  
Mineral property expenditures (1) (11)  
Care and maintenance expense (252) (139)  
(253) (150)  
Funding 643 230  
Foreign currency translation 1,544 2,690  
Balance – end of period 253,395 $ 244,174  
Current assets: Cash, prepaid expenses and other receivables 450   $ 197
Non-current assets: Mineral property 227,958   226,561
Current liabilities: Accounts payable and accrued liabilities (109)   (237)
Non-current liabilities: Reclamation obligation (7,692)   (7,645)
Net assets $ 220,607   $ 218,876