Note 5 - Stock Options (Details) (USD $)
 3 Months Ended 0 Months Ended 3 Months Ended 0 Months Ended 0 Months Ended
May 26, 2013
May 26, 2013
Employee Stock Option [Member]
Apr. 09, 2013
Restricted Stock [Member]
Long-Term Incentive Plan (LTIP) [Member]
May 26, 2013
Restricted Stock [Member]
Nov. 06, 2008
Stock Option Plan for Executives and Managers [Member]
Apr. 02, 1999
Stock Option Plan for Executives and Managers [Member]
Nov. 06, 2008
Key Employees Stock Option Plan [Member]
Apr. 27, 2001
Key Employees Stock Option Plan [Member]
Jan. 07, 2000
Key Employees Stock Option Plan [Member]
May 26, 2013
Key Employees Stock Option Plan [Member]
Jun. 25, 1999
Key Employees Stock Option Plan [Member]
Apr. 09, 2013
Long-Term Incentive Plan (LTIP) [Member]
May 26, 2013
Long-Term Incentive Plan (LTIP) [Member]
Note 5 - Stock Options (Details) [Line Items]                          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized           145,500         291,000 150,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 0       350 145,150 149,650 11,500 129,850        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)         $ 1.50 $ 4.125 $ 1.50 $ 0.85 $ 3.00        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         6 months   6 months         6 months  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term         10 years   10 years            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 124,667                 124,317      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 1.50                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 21,333                        
Stock Issued During Period, Value, Stock Options Exercised (in Dollars) $ 32,200                        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   0                     119,431
Share-based Compensation (in Dollars)   $ 0   $ 17,300                  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted     30,569