Consolidated Statements Of Stockholder's Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Class A Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]	Retained Earnings [Member]	Comprehensive Income (Loss) [Member]	Total
Balance at Sep. 28, 2008			$ 8,939	$ (5,200)	$ 36,767		$ 40,506
Balance, shares at Sep. 28, 2008		35,152
Net income					34,769	34,769	34,769
Minimum pension liability adjustment				(11,520)		(11,520)	(11,520)
Balance at Sep. 27, 2009			8,939	(16,720)	71,536	23,249	63,755
Balance, shares at Sep. 27, 2009		35,152
Net income					24,584	24,584	24,584
Minimum pension liability adjustment				(2,206)		(2,206)	(2,206)
Dividend paid					(5,000)		(5,000)
Stock Redemption			(153)		(7,847)		(8,000)
Stock Redemption, shares		(600)
Balance at Sep. 26, 2010			8,786	(18,926)	83,273	22,378	73,133
Balance, shares at Sep. 26, 2010		34,552
Net income					26,290	26,290	26,290
Minimum pension liability adjustment				(4,119)		(4,119)	(4,119)
Dividend paid					(5,000)		(5,000)
Stock Redemption			(182)		(9,358)		(9,540)
Stock Redemption, shares		(715)
Balance at Sep. 25, 2011			$ 8,604	$ (23,045)	$ 95,205	$ 22,171	$ 80,764
Balance, shares at Sep. 25, 2011		33,837