Stock-Based Compensation (Stock-Based Compensation Expense By Type Of Award) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Stock-Based Compensation [Abstract]
Employee stock options	$ 2,683	$ 2,769	$ 1,811
Employee stock purchase plan (ESPP)	239	212	199
Restricted stock grants and restricted stock units	4,536	3,073	1,653
Amounts capitalized as inventory	1,985	1,608	806
Amounts recognized in income for amounts previously capitalized as inventory	1,878	1,315	879
Total stock-based compensation included in income from operations	7,351	5,761	3,736
Income tax benefits on stock-based compensation	(2,564)	(1,999)	(1,277)
Net compensation expense included in net income	$ 4,787	$ 3,762	$ 2,459