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Note Q - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Information (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Sep. 27, 2014		Jun. 28, 2014		Mar. 29, 2014		Dec. 28, 2013		Sep. 28, 2013		Jun. 29, 2013		Mar. 30, 2013		Dec. 29, 2012		Sep. 27, 2014		Sep. 28, 2013		Sep. 29, 2012	Sep. 29, 2012
Quarterly Financial Information [Abstract]
Net Sales	$ 253,494		$ 257,113		$ 205,321		$ 203,523		$ 237,913		$ 237,036		$ 201,326		$ 191,408		$ 919,451		$ 867,683			$ 830,796
Gross Profit	82,190		84,368		61,113		59,906		75,694		75,322		58,151		54,135		287,577		263,302			250,185
Net Earnings	$ 22,189		$ 23,678		$ 13,521		$ 12,426		$ 20,323		$ 21,172		$ 12,660		$ 10,226		$ 71,814		$ 64,381		$ 54,118	$ 54,118
Net Earnings Per Diluted Share (in Dollars per share)	$ 1.18	[1]	$ 1.26	[1]	$ 0.72	[1]	$ 0.66	[1]	$ 1.08	[1]	$ 1.12	[1]	$ 0.67	[1]	$ 0.54	[1]	$ 3.82	[1]	$ 3.41	[1]		$ 2.86
[1] Total of quarterly amounts do not necessarily agree to the annual report amounts due to separate quarterly calculations of weighted average shares outstanding.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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