Note 5 - Investment in Donlin Gold - Summary of the Company's Investment in Donlin Gold LLC (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Nov. 30, 2021
Income (Loss) from Equity Method Investments	$ (8,441)	$ (4,198)	$ (12,481)	$ (6,166)
Current assets: Cash, prepaid expenses and other receivables	143,309		143,309		$ 169,451
Current liabilities: Accounts payable, accrued liabilities and lease obligations	(660)		(660)		(682)
Donlin Gold [Member]
Balance – Beginning of Period	5,472	3,592	3,576	2,614
Mineral Property Expenditures	(8,343)	(4,129)	(12,287)	(6,030)
Depreciation	(86)	(69)	(171)	(136)
Accretion	(12)	0	(23)	0
Income (Loss) from Equity Method Investments	(8,441)	(4,198)	(12,481)	(6,166)
Funding	10,551	5,178	16,487	8,124
Balance – End of Period	7,582	$ 4,572	7,582	$ 4,572
Current assets: Cash, prepaid expenses and other receivables	9,509		9,509		3,815
Non-current assets: Right-of-use assets, property and equipment	1,430		1,430		1,417
Non-current assets: Mineral property	32,615		32,615		32,615
Current liabilities: Accounts payable, accrued liabilities and lease obligations	(3,299)		(3,299)		(1,584)
Non-current liabilities: Reclamation and lease obligations	(673)		(673)		(687)
Net assets	$ 39,582		$ 39,582		$ 35,576