Business, Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended	12 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended									9 Months Ended	3 Months Ended
	Mar. 24, 2013	Mar. 25, 2012	Mar. 25, 2012	Jun. 30, 2013	Mar. 25, 2012 Contingent Consideration [Member]	Dec. 25, 2011 Contingent Consideration [Member]	Jun. 26, 2011 Contingent Consideration [Member]	Mar. 24, 2013 Derivatives [Member]	Mar. 25, 2012 Derivatives [Member]	Mar. 24, 2013 Derivatives [Member]	Mar. 25, 2012 Derivatives [Member]	Mar. 25, 2012 Investments [Member]	Mar. 25, 2012 Investments [Member]	Mar. 24, 2013 Measured at Fair Value on a Recurring Basis [Member]	Jun. 24, 2012 Measured at Fair Value on a Recurring Basis [Member]	Mar. 24, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 1 [Member]	Jun. 24, 2012 Measured at Fair Value on a Recurring Basis [Member] Level 1 [Member]	Mar. 24, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 2 [Member]	Jun. 24, 2012 Measured at Fair Value on a Recurring Basis [Member] Level 2 [Member]	Mar. 24, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 3 [Member]	Jun. 24, 2012 Measured at Fair Value on a Recurring Basis [Member] Level 3 [Member]	Mar. 24, 2013 Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Mar. 24, 2013 Subcontractor facility located in southeast Asia [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Dec. 23, 2012 Newport and Mexico manufacturing facilities [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]
Fiscal year and Quarter [Abstract]
Minimum number of weeks in a fiscal year	52
Maximum number of weeks in a fiscal year	53
Number of weeks in a fiscal quarter	13
Number of weeks in current fiscal year				53
Assets and Liabilities [Abstract]
Cash and cash equivalents															$ 9,997,000				$ 9,997,000
Short-term investments														15,058,000	63,872,000	6,005,000	33,058,000	9,053,000	30,814,000
Prepaid expenses and other receivables														432,000	622,000			432,000	622,000
Long-term investments															15,054,000		10,001,000		5,053,000
Other assets														27,927,000	27,358,000	24,982,000	24,439,000		85,000	2,945,000	2,834,000
Other long-term liabilities														(8,448,000)	(8,139,000)	(8,448,000)	(8,139,000)
Total														34,969,000	108,764,000	22,539,000	59,359,000	9,485,000	46,571,000	2,945,000	2,834,000
Fair value as a percentage of total (in hundredths)														100.00%	100.00%	64.50%	54.60%	27.10%	42.80%	8.40%	2.60%
Level 3 as a percentage of total assets (in hundredths)																				0.20%	0.20%
Carrying value of equipment prior to impairment																							300,000	8,700,000
Equipment Fair Value Disclosure																							0	4,000,000
Fixed Asset Impairment Charges																						5,000,000	300,000
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance		3,294,000	3,554,000					3,036,000	3,028,000	2,834,000	2,773,000	266,000	781,000
Total gains or losses (realized or unrealized) [Abstract]
Included in other expense		(246,000)	41,000					(91,000)	(232,000)	111,000	23,000	(14,000)	18,000
Included in unrealized holding losses on available-for-sale securities in other comprehensive income			(190,000)										(190,000)
Purchases, maturities, and sales:
Maturities/prepayments		(31,000)	(78,000)									(31,000)	(78,000)
Sales		(221,000)	(531,000)									(221,000)	(531,000)
Ending balance		2,796,000	2,796,000					2,945,000	2,796,000	2,945,000	2,796,000
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance					400,000	400,000	400,000
Ending balance					$ 400,000	$ 400,000	$ 400,000