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Note L - Stock Options - Stock Option Activity (Details) - $ / shares	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Incentive Stock Options [Member]
Balance (in shares)	433,556	392,981	355,787
Balance (in dollars per share)	$ 120.90	$ 109.41	$ 92.81
Granted (in shares)	118,934	122,595	121,508
Granted (in dollars per share)	$ 163.14	$ 141.07	$ 129.35
Exercised (in shares)	(100,018)	(64,470)	(78,114)
Exercised (in dollars per share)	$ 102.01	$ 90.75	$ 65.49
Canceled (in shares)	(18,320)	(17,550)	(6,200)
Canceled (in dollars per share)	$ 127.88	$ 115.21	$ 100.93
Balance (in shares)	434,152	433,556	392,981
Balance (in dollars per share)	$ 136.53	$ 120.90	$ 109.41
Options exercisable (in shares)	94,492
Exercisable options (in dollars per share)	$ 106.36
Non-qualified Stock Options [Member]
Balance (in shares)	332,269	311,514	311,884
Balance (in dollars per share)	$ 105.66	$ 92.58	$ 75.56
Granted (in shares)	66,236	58,083	59,786
Granted (in dollars per share)	$ 171.78	$ 144.41	$ 129.94
Exercised (in shares)	(35,763)	(37,328)	(60,156)
Exercised (in dollars per share)	$ 101.03	$ 56.85	$ 41.46
Canceled (in shares)	0	0	0
Canceled (in dollars per share)	$ 0	$ 0	$ 0
Balance (in shares)	362,742	332,269	311,514
Balance (in dollars per share)	$ 118.19	$ 105.66	$ 92.58
Options exercisable (in shares)	179,428
Exercisable options (in dollars per share)	$ 86.10

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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