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Note L - Stock Options (Tables) | 12 Months Ended
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Sep. 24, 2016
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 24, |  |  | Contractual |  |  | Exercise |  |  | September 24, |  |  | Exercise |
Exercise Prices |  | 2016 |  |  | Life |  |  | Price |  |  | 2016 |  |  | Price |
$31.10-$41.75 |  |  | 80,000 |  |  |  | 1.8 |  |  | $ | 35.46 |  |  |  | 80,000 |  |  | $ | 35.46 |
$47.59-$57.99 |  |  | 59,880 |  |  |  | 4.0 |  |  |  | 54.30 |  |  |  | 59,880 |  |  |  | 54.30 |
$80.79-$119.44 |  |  | 172,004 |  |  |  | 5.9 |  |  |  | 101.61 |  |  |  | - |  |  |  | - |
Total options |  |  | 311,884 |  |  |  | 4.4 |  |  |  | 75.56 |  |  |  | 139,880 |  |  |  | 43.52 |
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 24, |  |  | Contractual |  |  | Exercise |  |  | September 24, |  |  | Exercise |
Exercise Prices |  | 2016 |  |  | Life |  |  | Price |  |  | 2016 |  |  | Price |
$57.15-$81.67 |  |  | 129,733 |  |  |  | 1.6 |  |  | $ | 71.68 |  |  |  | 54,640 |  |  | $ | 57.98 |
$89.37-$117.65 |  |  | 226,054 |  |  |  | 3.9 |  |  |  | 104.94 |  |  |  | - |  |  |  | - |
Total options |  |  | 355,787 |  |  |  | 3.1 |  |  |  | 92.81 |  |  |  | 54,640 |  |  |  | 57.98 |
Schedule of 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 29, 2013 |  |  | 259,852 |  |  | $ | 51.17 |  |  |  | 231,247 |  |  | $ | 44.77 |
Granted |  |  | 83,440 |  |  |  | 82.07 |  |  |  | 38,132 |  |  |  | 88.26 |
Exercised |  |  | (39,097 | ) |  |  | 42.42 |  |  |  | (20,000 | ) |  |  | 20.43 |
Canceled |  |  | (8,550 | ) |  |  | 58.68 |  |  |  | - |  |  |  | - |
Balance, September 27, 2014 |  |  | 295,645 |  |  |  | 60.83 |  |  |  | 249,379 |  |  |  | 53.38 |
Granted |  |  | 114,488 |  |  |  | 100.94 |  |  |  | 55,152 |  |  |  | 106.96 |
Exercised |  |  | (70,792 | ) |  |  | 47.30 |  |  |  | (6,590 | ) |  |  | 51.14 |
Canceled |  |  | (6,989 | ) |  |  | 84.13 |  |  |  | - |  |  |  | - |
Balance, September 26, 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 |
Exercisable Options |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
September 24, 2016 |  |  | 54,640 |  |  | $ | 57.98 |  |  |  | 139,880 |  |  | $ | 43.52 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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