Note 5 - Investment in Donlin Gold - Summary of the Company's Investment in Donlin Gold LLC (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2018
Income (Loss) from Equity Method Investments, Total	$ (14,502)	$ (10,491)	$ (8,798)
Current assets: Cash, prepaid expenses, and other receivables	196,386	150,339
Current liabilities: Accounts payable, accrued liabilities and lease obligations	(900)	(880)
Donlin Gold [Member]
Balance – beginning of period	1,840	1,209	1,100
Mineral property expenditures	(14,339)	(10,434)	(8,785)
Depreciation	(163)	(57)	(13)
Income (Loss) from Equity Method Investments, Total	(14,502)	(10,491)	(8,798)
Funding	15,276	11,122	8,907
Balance – end of period	2,614	1,840	$ 1,209
Current assets: Cash, prepaid expenses, and other receivables	2,654	3,115
Non-current assets: Right-of-use assets, property and equipment	1,339	462
Non-current assets: Mineral property	32,615	32,692
Current liabilities: Accounts payable, accrued liabilities and lease obligations	(1,271)	(1,737)
Non-current liabilities: Reclamation and lease obligations	(723)	(692)
Net assets	$ 34,614	$ 33,840