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Note A - Summary of Significant Accounting Policies - Recognized Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 29, 2018
Recognized Period Cost	$ 3,330	$ 2,199	$ 1,923
The above compensation is net of tax benefits	1,265	2,030	1,935
Share-based Payment Arrangement, Option [Member]
Recognized Period Cost	2,874	1,743	1,432
Share-based Payment Arrangement [Member]
Recognized Period Cost	390	390	423
Stock Issued to Outside Directors [Member]
Recognized Period Cost	66	66	64
Restricted Stock [Member]
Recognized Period Cost	$ 0	$ 0	$ 4

X

- Definition

Represents the net amount of allocated share-based compensation expense (benefit).

+ References

No definition available.

+ Details

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X

- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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