CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 24, 2012	Sep. 24, 2011
CONSOLIDATED CONDENSED BALANCE SHEETS
Accounts receivable, allowance for uncollectible accounts (in dollars)	$ 896	$ 789
Property, plant and equipment, accumulated depreciation (in dollars)	$ 192,033	$ 182,918
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, authorized shares	1,000,000	1,000,000
Preferred stock, issued shares	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, authorized shares	18,000,000	18,000,000
Common stock, issued shares	12,270,000	12,237,000