Asset Impairment, Restructuring and Other Charges (Details) (USD $)	3 Months Ended				12 Months Ended
	Jun. 26, 2011	Mar. 27, 2011	Dec. 26, 2010	Sep. 26, 2010	Jun. 24, 2012	Jun. 26, 2011	Jun. 27, 2010
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)						$ (3,426,000)	$ 194,000
Other Charges						67,000	95,000
Total asset impairment, restructuring and other charges (recoveries)	0	(3,489,000)	(4,000)	134,000	0	(3,359,000)	289,000
Reported in cost of sales [Abstract]
Workforce reduction expense related to retention bonuses						(1,000,000)	1,000,000
Costs incurred to relocate and install equipment						200,000	2,100,000
Newport Fabrication Facility Consolidation Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period							359,000
Costs paid during the period							(347,000)
Foreign exchange gains							(12,000)
El Segundo Fabrication Facility Closure Initiative [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)						(3,426,000)	357,000
Total asset impairment, restructuring and other charges (recoveries)						(3,426,000)	357,000
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax					12,100,000
Total estimated cost of initiative attributable to non-cash charges					400,000
Total estimated cost of initiative attributable to facilities closure costs relating to equipment					1,000,000
El Segundo Fabrication Facility Closure Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period				4,896,000	461,000	4,896,000	3,535,000
Charged to asset impairment, restructuring and other charges							357,000
Charged to operating expenses							1,006,000
Costs paid during the period					(461,000)		(2,000)
Change in provision						(4,435,000)
Balance at end of period	461,000					461,000	4,896,000
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax					5,900,000
El Segundo Fabrication Facility Closure Initiative [Member] | Facility Closing [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax					6,200,000
El Segundo Fabrication Facility Closure Initiative [Member] | Severance [Member]
Total estimated costs of initiative [Abstract]
Restructuring costs incurred to date							4,000,000
Recoveries recorded for previously accrued severance costs						3,500,000
El Segundo Fabrication Facility Closure Initiative [Member] | Other Workforce Reduction Costs [Member]
Total estimated costs of initiative [Abstract]
Restructuring costs incurred to date							1,700,000
El Segundo Fabrication Facility Closure Initiative [Member] | Other Charges [Member]
Total estimated costs of initiative [Abstract]
Restructuring costs incurred to date							3,900,000
Research and Development Facility Closure Initiative [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)							(47,000)
Other Charges						67,000	95,000
Total asset impairment, restructuring and other charges (recoveries)						67,000	48,000
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative attributable to cash outlay					5,400,000
Restructuring costs incurred to date					7,500,000
All Other [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period							376,000	[1]
Charged to operating expenses							31,000	[1]
Costs paid during the period							(244,000)	[1]
Change in provision							(163,000)	[1]
Other Activities and Charges [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)							(116,000)
Total asset impairment, restructuring and other charges (recoveries)							$ (116,000)

[1] All Other includes accruals related to Research and Development Facility, the Divestiture, and Other Activities and Charges.