Income Taxes (Summary Of The Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Oct. 03, 2015	Sep. 27, 2014
Deferred tax assets
Accrued compensation and benefits	$ 11,723	$ 11,604
Inventory reserves	5,198	5,060
Other assets	4,389	2,935
Allowance for doubtful accounts	866	644
Net operating loss carryovers	84	277
Research and development tax credit carryovers	993	326
Intangible assets		63
Total deferred tax asset before valuation allowance	23,253	20,909
Less valuation allowance	(921)	(442)
Total deferred tax assets	22,332	20,467
Deferred tax liabilities
Property and equipment	9,775	8,557
Foreign deferred revenue and other	1,738	2,541
Intangible assets	1,303
Unrealized derivative instrument gains	1,199	269
Total deferred tax liabilities	14,015	11,367
Net deferred tax assets	$ 8,317	$ 9,100