Note 6 - Other Assets - Carrying Amounts of Other Assets (Details) - USD ($) $ in Thousands	May 31, 2022	Nov. 30, 2021
Accounts and interest receivable	$ 406	$ 302
Prepaid expenses	611	25
Other Assets, Current	1,017	327
Marketable equity securities	2,567	1,830
Office equipment	24	27
Other Assets, Noncurrent	3,632	2,253
Other Noncurrent Assets [Member]
Right-of-use assets	$ 1,041	$ 396