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Note 6 - Other Assets - Carrying Amounts of Other Assets (Details) - USD ($)
$ in Thousands
Feb. 28, 2025
Nov. 30, 2024
Interest receivable $ 367 $ 89
Prepaid expenses 928 1,207
Other Assets, Current 1,669 1,530
Marketable equity securities 2,520 $ 3,387
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]   Other Assets, Noncurrent
Right-of-use assets 844 $ 896
Office equipment 113 119
Other Assets, Noncurrent 3,477 4,402
Nonrelated Party [Member]    
Accounts receivable 25 22
Related Party [Member]    
Accounts receivable $ 349 $ 212