Note 5 - Investment in Donlin Gold - Summary of the Company's Investment in Donlin Gold LLC (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Nov. 30, 2021
Income (Loss) from Equity Method Investments, Total	$ (4,040)	$ (1,968)
Current assets: Cash, prepaid expenses, and other receivables	156,443		$ 169,451
Current liabilities: Accounts payable, accrued liabilities and lease obligations	(536)		(682)
Donlin Gold [Member]
Balance – Beginning of Period	3,576	2,614
Mineral Property Expenditures	(3,944)	(1,901)
Depreciation	(85)	(67)
Accretion	(11)	0
Income (Loss) from Equity Method Investments, Total	(4,040)	(1,968)
Funding	5,936	2,946
Balance – End of Period	5,472	$ 3,592
Current assets: Cash, prepaid expenses, and other receivables	6,795		3,815
Non-current assets: Right-of-use assets, property and equipment	1,355		1,417
Non-current assets: Mineral property	32,615		32,615
Current liabilities: Accounts payable, accrued liabilities and lease obligations	(2,608)		(1,584)
Non-current liabilities: Reclamation and lease obligations	(685)		(687)
Net assets	$ 37,472		$ 35,576