Annual report [Section 13 and 15(d), not S-K Item 405]

Note 17 - Income Taxes (Details Textual)

v3.25.4
Note 17 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended 24 Months Ended
Nov. 30, 2025
Nov. 30, 2025
Nov. 30, 2024
Deferred Tax Assets, Valuation Allowance $ 775 $ 775 $ 837
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 100 $ 8,500  
Percentage of Cumulative Ownership Change 12.07% 12.07%  
Capitalized Research and Development Costs $ 2,400 $ 2,400 4,500
State and Local Jurisdiction [Member]      
Tax Credit Carryforward, Amount 100 100  
Operating Loss Carryforwards, Subject to Expiration 3,200 3,200  
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member]      
Tax Credit Carryforward, Amount 200 200 200
Domestic Tax Jurisdiction [Member]      
Operating Loss Carryforwards, Subject to Expiration 7,500 7,500  
Operating Loss Carryforwards, Not Subject to Expiration 4,700 4,700  
Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member]      
Tax Credit Carryforward, Amount 200 200 $ 100
Foreign Tax Jurisdiction [Member]      
Operating Loss Carryforwards, Indefinite $ 900 $ 900