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Note L - Stock Options (Tables) | 12 Months Ended
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Sep. 29, 2018
Notes Tables |
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Incentive Stock Options |  |  | Nonqualified Stock Options |
|  |  |  |  |  | Weighted- |  |  |  |  |  |  | Weighted- |
|  | Stock |  |  | Average |  |  | Stock |  |  | Average |
|  | Options |  |  | Exercise |  |  | Options |  |  | Exercise |
|  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Price |
Balance, September 27, 2015 |  |  | 332,352 |  |  | $ | 77.04 |  |  |  | 297,941 |  |  | $ | 63.34 |
Granted |  |  | 120,450 |  |  |  | 108.69 |  |  |  | 58,720 |  |  |  | 112.35 |
Exercised |  |  | (86,223 | ) |  |  | 53.67 |  |  |  | (44,777 | ) |  |  | 42.53 |
Canceled |  |  | (10,792 | ) |  |  | 97.07 |  |  |  | - |  |  |  | - |
Balance, September 24, 2016 |  |  | 355,787 |  |  |  | 92.81 |  |  |  | 311,884 |  |  |  | 75.56 |
Granted |  |  | 121,508 |  |  |  | 129.35 |  |  |  | 59,786 |  |  |  | 129.94 |
Exercised |  |  | (78,114 | ) |  |  | 65.49 |  |  |  | (60,156 | ) |  |  | 41.46 |
Canceled |  |  | (6,200 | ) |  |  | 100.93 |  |  |  | - |  |  |  | - |
Balance, September 30, 2017 |  |  | 392,981 |  |  |  | 109.41 |  |  |  | 311,514 |  |  |  | 92.58 |
Granted |  |  | 122,595 |  |  |  | 141.07 |  |  |  | 58,083 |  |  |  | 144.41 |
Excercised |  |  | (64,470 | ) |  |  | 90.75 |  |  |  | (37,328 | ) |  |  | 56.85 |
Canceled |  |  | (17,550 | ) |  |  | 115.21 |  |  |  | - |  |  |  | - |
Balance, September 29, 2018 |  |  | 433,556 |  |  | $ | 120.90 |  |  |  | 332,269 |  |  | $ | 105.66 |
Exercisable Options September 29, 2018 |  |  | 86,153 |  |  | $ | 97.32 |  |  |  | 155,680 |  |  | $ | 79.35 |
Non-qualified Stock Options [Member] |
Notes Tables |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
|  |  |  | Options Outstanding |  |  | Options Exercisable |
|  |  |  | Number |  |  | Weighted- |  |  |  |  |  |  | Number |  |  |  |  |
|  |  |  | Outstanding |  |  | Average |  |  | Weighted- |  |  | Exercisable |  |  | Weighted- |
|  |  |  | at |  |  | Remaining |  |  | Average |  |  | at |  |  | Average |
Range of |  | September 29, |  |  | Contractual |  |  | Exercise |  |  | September 29, |  |  | Exercise |
Exercise Prices |  | 2018 |  |  | Life |  |  | Price |  |  | 2018 |  |  | Price |
$41.75 | - | $57.33 |  |  | 60,000 |  |  |  | 2.9 |  |  | $ | 48.89 |  |  |  | 60,000 |  |  | $ | 48.89 |
$80.79 | - | $119.44 |  |  | 154,400 |  |  |  | 4.3 |  |  |  | 103.73 |  |  |  | 95,680 |  |  |  | 98.45 |
$129.26 | - | $150.89 |  |  | 117,869 |  |  |  | 5.8 |  |  |  | 137.07 |  |  |  | - |  |  |  | - |
Total options |  |  | 332,269 |  |  |  | 4.6 |  |  |  | 105.66 |  |  |  | 155,680 |  |  |  | 79.35 |
Incentive Stock Options [Member] |
Notes Tables |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
|  |  |  | Options Outstanding |  |  | Options Exercisable |
|  |  |  | Number |  |  | Weighted- |  |  |  |  |  |  | Number |  |  |  |  |
|  |  |  | Outstanding |  |  | Average |  |  | Weighted- |  |  | Exercisable |  |  | Weighted- |
|  |  |  | at |  |  | Remaining |  |  | Average |  |  | at |  |  | Average |
Range of |  | September 29, |  |  | Contractual |  |  | Exercise |  |  | September 29, |  |  | Exercise |
Exercise Prices |  | 2018 |  |  | Life |  |  | Price |  |  | 2018 |  |  | Price |
$81.67 | - | $113.15 |  |  | 198,303 |  |  |  | 1.8 |  |  | $ | 103.75 |  |  |  | 86,153 |  |  | $ | 97.32 |
$128.78 | - | $146.03 |  |  | 235,253 |  |  |  | 3.9 |  |  |  | 135.36 |  |  |  | - |  |  |  | - |
Total options |  |  | 433,556 |  |  |  | 3.0 |  |  |  | 120.90 |  |  |  | 86,153 |  |  |  | 97.32 |

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