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Note L - Stock Options (Tables)
12 Months Ended
Sep. 29, 2012
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   
Incentive Stock Options
   
Nonqualified Stock Options
 
   
Stock
Options
Outstanding
   
Weighted-
Average
Exercise
Price
   
Stock
Options
Outstanding
   
Weighted-
Average
Exercise
Price
 
                         
Balance, September 27, 2009
    428,944     $ 26.45       306,354     $ 19.55  
Granted
    101,330       36.77       20,000       41.75  
Exercised
    (92,760 )     16.40       (72,354 )     10.12  
Cancelled
    (19,505 )     33.47       (10,000 )     38.81  
                                 
Balance, September 25, 2010
    418,009       30.86       244,000       23.38  
Granted
    101,200       50.93       45,315       49.57  
Exercised
    (186,039 )     23.52       (62,000 )     10.30  
Cancelled
    (10,050 )     36.77       -       -  
                                 
Balance, September 24, 2011
    323,120       41.18       227,315       32.17  
Granted
    118,210       57.87       45,932       57.70  
Exercised
    (71,350 )     39.03       (62,000 )     19.77  
Cancelled
    (14,300 )     41.13       -       -  
                                 
Balance, September 29, 2012
    355,680     $ 47.16       211,247     $ 41.36  
Exercisable Options September 29, 2012
    47,686               100,000          
Incentive Stock Options [Member]
 
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
       
Options Outstanding
   
Options Exercisable
 
Range of Exercise Prices  
Number Outstanding at
September 29, 2012
 
Weighted-Average Remaining Contractual Life
(years)
 
Weighted-Average Exercise Price
   
Number Exercisable at September 29, 2012
   
Weighted-Average Exercise Price
 
$27.45 -
$38.70
    139,120  
 1.5
  $ 35.42       47,686     $ 32.90  
$44.16 -
$58.90
    216,560  
 4.4
  $ 54.71       -     $ -  
          355,680                 47,686          
Nonqualified Stock Options [Member]
 
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
       
Options Outstanding
   
Options Exercisable
 
Range of Exercise Prices  
Number Outstanding at
 September 29, 2012
 
Weighted-Average Remaining Contractual Life
(years)
 
Weighted-Average Exercise Price
   
Number Exercisable at September 29, 2012
   
Weighted-Average Exercise Price
 
$20.43 -
$29.78
    40,000  
 2.6
  $ 25.10       40,000     $ 25.10  
$31.10 -
$41.75
    80,000  
 5.7
  $ 35.46       60,000     $ 33.36  
$47.59 -
$57.99
    91,247  
 6.6
  $ 53.67       -     $ -  
          211,247                 100,000