Income Taxes (Details Textual) (USD $)	3 Months Ended				12 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Oct. 03, 2010	Apr. 04, 2010	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Income Taxes (Textual) [Abstract]
Uncertain tax positions					$ 5,500,000	$ 4,700,000
Uncertain tax positions that would affect tax rate					3,000,000	2,300,000
Accrued interest related to uncertain tax positions					500,000	400,000
Interest expense					100,000	15,000	500,000
Change in tax expense due to tax deductibility				500,000
Tax rate					41.00%	37.90%	35.40%
Effective income tax rate					44.60%	40.60%	37.50%
Reduction of liability for uncertain tax positions	200,000	900,000	1,700,000
Decrease in income tax expense					200,000	900,000	1,700,000
Tax expense related to changes made to the tax deductibility of Medicare Part D subsidies				500,000
Valuation allowance					$ 3,200,000	$ 1,500,000
Period of Uncertain Tax Position					12 months
Net operating loss carryforwards expiration ending year					2031