Income Taxes (Schedule Of Components Of Net Deferred Income Tax Asset) (Details) (USD $)	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 89,500,000
Valuation Allowance Related To Tax Deductions For Stock-Based Compensation	4,500,000
Tax reductions due to tax holiday	24,100,000	22,700,000	17,500,000
Income Tax Holiday, Income Tax Benefits Per Share	$ 0.71	$ 0.66	$ 0.50
Aggregate Undistributed Earnings Of Foreign Subsidiaries	687,600,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	7,900,000	7,000,000	24,100,000
Loss/credit carryforwards	17,356,000	12,985,000
Goodwill	541,000	1,268,000
Inventories	5,468,000	4,997,000
Accrued benefits	23,754,000	19,428,000
Allowance for bad debts	343,000	339,000
Other	3,165,000	3,304,000
Total gross deferred income tax assets	50,627,000	42,321,000
Less valuation allowance	(41,935,000)	(34,075,000)
Deferred income tax assets	8,692,000	8,246,000
Property, plant and equipment	4,322,000	3,934,000
Other	84,000	13,000
Deferred income tax liabilities	4,406,000	3,947,000
Net deferred income tax asset	4,286,000	4,299,000
UNITED STATES
Operating Loss Carryforwards [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount			22,800,000
UNITED KINGDOM
Operating Loss Carryforwards [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount		$ 1,800,000