Summary Of Significant Accounting Policies (Schedule Of Earnings Per Share, Basic And Diluted) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Earnings Per Common Share [Abstract]
Net income	$ 42,009	$ 57,806	$ 51,556
Weighted average common shares outstanding	15,218	15,664	15,913
Dilutive potential common shares	179	197	164
Weighted average dilutive common shares outstanding	15,397	15,861	16,077
Earnings Per Share, Basic	$ 2.76	$ 3.69	$ 3.24
Earnings Per Share, Diluted	$ 2.73	$ 3.64	$ 3.21