v3.26.1
Note 5 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Jul. 24, 2018
Apr. 30, 2023
Nov. 30, 2025
Aug. 31, 2025
Jun. 01, 2025
Mar. 01, 2026
Mar. 02, 2025
Mar. 03, 2024
Jul. 18, 2024
Common Stock, Capital Shares Reserved for Future Issuance           1,495,841      
Share-Based Payment Arrangement, Plan Modification, Incremental Cost           $ 16,000 $ 36,000 $ 109,000  
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)     $ 0.5 $ 0.5 $ 0.5        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value           $ 869,000 $ 491,000 $ 11,000  
S2023FYDividends [Member]                  
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)   $ 1              
The 2018 Stock Option Plan [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized                 1,550,000
Percentage of Stock Options, Exercisable One Year From Date of Grant 25.00%                
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period 1 year                
Percentage of Stock Options Exercisable On Each Succeeding Year from Date of Grant 25.00%                
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 10 years                
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant           755,363      
Common Stock, Capital Shares Reserved for Future Issuance           738,228      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount           $ 758,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           1 year 3 months 21 days      
The 2022 Plan [Member]                  
Common Stock, Capital Shares Reserved for Future Issuance           2,250