Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 24, 2011	Sep. 24, 2011
Cash and cash equivalents	$ 94,091	$ 87,479
Marketable securities held to maturity	8,650	25,506
Accounts receivable, net	55,872	75,000
Inventories, net	66,435	63,461
Prepaid expenses and other	2,299	4,196
Deferred income taxes	4,240	4,208
	231,587	259,850
Property, plant and equipment, at cost
Land	2,496	2,496
Buildings	15,766	15,766
Improvements	21,145	21,054
Construction in progress	12,813	7,728
	454,239	446,856
Less accumulated depreciation and amortization	327,200	322,206
	127,039	124,650
Other assets
Goodwill	70,070	70,070
Other intangible assets, net	51,373	52,005
Marketable securities held to maturity	63,000	42,000
Other	2,226	2,241
	186,669	166,316
	545,295	550,816
Current liabilities
Current obligations under capital leases	284	278
Accounts payable	49,294	55,918
Accrued liabilities	5,467	4,593
Accrued compensation expense	8,007	12,859
Dividends payable	2,440	2,200
	65,492	75,848
Long-term obligations under capital leases	448	523
Deferred income taxes	40,993	41,050
Other long-term liabilities	965	1,007
	42,406	42,580
Capital stock
Preferred, $1 par value; authorized, 10,000 shares; none issued	0	0
Common, no par value; authorized 50,000 shares; issued and outstanding, 18,662 and 18,491 shares, respectively	47,136	45,017
Accumulated other comprehensive loss	(4,070)	(3,914)
Retained earnings	394,331	391,285
	437,397	432,388
	545,295	550,816
Plant Machinery and Equipment [Member]
Property, plant and equipment, at cost
Equipment	159,061	158,408
Marketing Equipment [Member]
Property, plant and equipment, at cost
Equipment	224,766	223,490
Transportation Equipment [Member]
Property, plant and equipment, at cost
Equipment	4,304	4,264
Office Equipment [Member]
Property, plant and equipment, at cost
Equipment	$ 13,888	$ 13,650