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Note 14 - Capital Stock and Stock Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 1 Months Ended 12 Months Ended
Apr. 14, 2010
Dec. 31, 2000
Nov. 30, 2013
Nov. 24, 2012
Nov. 26, 2011
Dec. 31, 1997
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Common Stock, Capital Shares Reserved for Future Issuance           950,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 500,000 500,000        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         4 years  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant       500,000    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period         91,000  
Share-Based Compensation Arrangement by Share-Based Payment Award Award Term         10 years  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options (in Dollars)     $ 218      
Shares Paid for Tax Withholding for Share Based Compensation     11,550      
Payments Related to Tax Withholding for Share-based Compensation (in Dollars)     226 16 2  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)     1,243      
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent   85.00%        
Stock Issued During Period, Shares, Employee Stock Purchase Plans     38,206 42,211 39,618  
Employee Stock Option [Member]
           
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     2 years      
Restricted Stock [Member] | Employees [Member]
           
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period     41,000      
Restricted Stock [Member] | Director [Member]
           
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period     11,184      
Restricted Stock [Member]
           
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     5 years      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period     52,184      
Payments Related to Tax Withholding for Share-based Compensation (in Dollars)     202      
Proceeds and Excess Tax Benefit from Share-based Compensation (in Dollars)     $ 207      
Minimum [Member]
           
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   1 year        
Maximum [Member]
           
Note 14 - Capital Stock and Stock Compensation (Details) [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   3 years