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Note 12 - Capital Stock and Stock Compensation (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Nov. 25, 2023
Nov. 26, 2022
Nov. 27, 2021
Mar. 10, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) 0 0 0  
Payment, Tax Withholding, Share-Based Payment Arrangement $ 109 $ 19 $ 219  
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount $ 10 1 $ (133)  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount   $ 867    
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) 28,063,000 30,074,000 22,547,000  
Restricted Stock [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 32,899      
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount $ 10 $ 1 $ (133)  
Restricted Stock [Member] | Employees [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 17,100      
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) 5,985 1,225 10,850  
Restricted Stock [Member] | Director [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 15,799      
Plan 2021 [Member]        
Common Stock, Capital Shares Reserved for Future Issuance (in shares)       500,000
Plan 2010 [Member] | Restricted Stock [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 32,899      
Payment, Tax Withholding, Share-Based Payment Arrangement $ 109 $ 19 $ 219  
Employee Stock Purchase Plan [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent 85.00%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) 74,397