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Note 4 - Investment in Donlin Gold (Tables)
6 Months Ended
May 31, 2017
Donlin Gold [Member]  
Notes Tables  
Equity Method Investments [Table Text Block]
    Three months ended May 31,   Six months ended May 31,
    2017   2016   2017   2016
Balance – beginning of period   $
1,279
    $
903
    $
951
    $
1,058
 
Share of losses:                                
Mineral property expenditures    
(2,525
)    
(2,466
)    
(4,584
)    
(4,430
)
Depreciation    
(22
)    
(36
)    
(45
)    
(75
)
     
(2,547
)    
(2,502
)    
(4,629
)    
(4,505
)
Funding    
2,568
     
2,886
     
4,978
     
4,734
 
Balance – end of period   $
1,300
    $
1,287
    $
1,300
    $
1,287
 
    At
May 31,
2017
 
At
November 30,
2016
Current assets: Cash, prepaid expenses and other receivables   $
2,086
    $
1,540
 
Non-current assets: Property and equipment    
59
     
101
 
Non-current assets: Mineral property    
32,692
     
32,692
 
Current liabilities: Accounts payable and accrued liabilities    
(845
)    
(690
)
Non-current liabilities: Reclamation obligation    
(692
)    
(692
)
Net assets   $
33,300
    $
32,951