Note 6 - Other Assets - Carrying Amounts of Other Assets (Details) - USD ($) $ in Thousands	Nov. 30, 2020	Nov. 30, 2019
Accounts and interest receivable	$ 577	$ 1,100
Prepaid expenses	1,292	690
Other Assets, Current	1,869	1,790
Marketable equity securities	1,402	935
Right-of-use assets	600	0
Office equipment	34	42
Other Assets, Noncurrent, Total	$ 2,036	$ 977