Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Jun. 29, 2013	Jun. 23, 2012
Operating activities:
Net earnings	$ 44,058,000	$ 34,580,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation of fixed assets	21,298,000	19,332,000
Amortization of intangibles and deferred costs	3,577,000	3,572,000
Share-based compensation	1,458,000	919,000
Deferred income taxes	(167,000)	(122,000)
Other	(118,000)	(155,000)
Changes in assets and liabilities net of effects from purchase of companies
Increase in accounts receivable	(16,104,000)	(8,207,000)
Increase in inventories	(5,462,000)	(9,785,000)
(Increase) decrease in prepaid expenses	(1,248,000)	969,000
Increase in accounts payable and accrued liabilities	6,408,000	11,388,000
Net cash provided by operating activities	53,700,000	52,491,000
Investing activities:
Payments for purchases of companies, net of cash acquired		(7,900,000)
Purchases of property, plant and equipment	(26,954,000)	(30,077,000)
Purchases of marketable securities	(113,352,000)	(68,450,000)
Proceeds from redemption of marketable securities	23,958,000	81,023,000
Proceeds from disposal of property and equipment	782,000	645,000
Other	(19,000)	(962,000)
Net cash used in investing activities	(115,585,000)	(25,721,000)
Financing activities:
Payments to repurchase common stock	(7,198,000)	0
Proceeds from issuance of stock	2,899,000	2,568,000
Payments on capital leases	(267,000)	(210,000)
Payment of cash dividend	(8,457,000)	(7,092,000)
Net cash used in financing activities	(13,023,000)	(4,734,000)
Effect of exchange rate on cash and cash equivalents	(22,000)	(34,000)
Net (decrease) increase in cash and cash equivalents	(74,930,000)	22,002,000
Cash and cash equivalents at beginning of period	154,198,000	87,479,000
Cash and cash equivalents at end of period	$ 79,268,000	$ 109,481,000