Asset Impairment, Restructuring and Other Charges (Recoveries) (Details) (USD $)	3 Months Ended								12 Months Ended
	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 24, 2013	Dec. 23, 2012	Sep. 23, 2012	Jun. 29, 2014	Jun. 30, 2013	Jun. 24, 2012
Reported in asset impairment, restructuring and related charges:
Asset impairment									$ 0	$ 1,915,000
Severance and workforce reduction costs (recoveries)									121,000	11,889,000
Decommissioning costs									383,000	79,000
Relocation and re-qualification costs									5,134,000	3,113,000
Total asset impairment, restructuring and related charges	1,597,000	1,624,000	1,015,000	1,402,000	2,209,000	880,000	4,941,000	8,966,000	5,638,000	16,996,000	0
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period				197,000				0	197,000	0
Charged to asset impairment, restructuring and other charges									121,000	11,889,000
Costs paid during the period									(261,000)	(11,692,000)
Balance at end of period	57,000				197,000				57,000	197,000	0
Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative [Member]
Reported in asset impairment, restructuring and related charges:
Asset impairment									0	178,000
Severance and workforce reduction costs (recoveries)									(20,000)	5,875,000
Decommissioning costs									0	0
Relocation and re-qualification costs									4,000	398,000
Total asset impairment, restructuring and related charges									(16,000)	6,451,000
Changes in restructuring related accruals [Roll Forward]
Costs paid during the period									(100,000)	(6,100,000)
Total estimated costs of initiative [Abstract]
Total Estimated Cash Payments After Current Year	(100,000)								(100,000)
Estimated cash expenditures for decommissioning					2,500,000					2,500,000
Fiscal Year 2013 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				197,000				0	197,000	0
Charged to asset impairment, restructuring and other charges									(20,000)	5,875,000
Costs paid during the period									(120,000)	(5,678,000)
Balance at end of period	57,000				197,000				57,000	197,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member]
Reported in asset impairment, restructuring and related charges:
Asset impairment									0	675,000
Severance and workforce reduction costs (recoveries)									141,000	597,000
Decommissioning costs									383,000	79,000
Relocation and re-qualification costs									5,130,000	2,715,000
Total asset impairment, restructuring and related charges									5,654,000	4,066,000
Changes in restructuring related accruals [Roll Forward]
Costs paid during the period									(5,700,000)	(3,400,000)
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax									16,300,000
Total Estimated Cash Payments After Current Year	(6,600,000)								(6,600,000)
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period				0				0	0	0
Charged to asset impairment, restructuring and other charges									141,000	597,000
Costs paid during the period									(141,000)	(597,000)
Balance at end of period	0				0				0	0
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax									2,600,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Relocation and requalification costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax									8,600,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Asset impairment costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax									700,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Decommissioning Costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax									4,400,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member]
Reported in asset impairment, restructuring and related charges:
Asset impairment									0	1,062,000
Severance and workforce reduction costs (recoveries)									0	5,417,000
Decommissioning costs									0	0
Relocation and re-qualification costs									0	0
Total asset impairment, restructuring and related charges									0	6,479,000
Changes in restructuring related accruals [Roll Forward]
Costs paid during the period										(5,400,000)
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period				0				0	0	0
Charged to asset impairment, restructuring and other charges									0	5,417,000
Costs paid during the period									0	(5,417,000)
Balance at end of period	0				0				0	0
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Related to manufacturing functions [Member]
Reported in asset impairment, restructuring and related charges:
Severance and workforce reduction costs (recoveries)									3,000,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Related to general and administrative functions [Member]
Reported in asset impairment, restructuring and related charges:
Severance and workforce reduction costs (recoveries)									1,100,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Related to research and development functions [Member]
Reported in asset impairment, restructuring and related charges:
Severance and workforce reduction costs (recoveries)									1,300,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Planned disposition of certain manufacturing equipment [Member]
Reported in asset impairment, restructuring and related charges:
Asset impairment									1,100,000
Cost of Sales [Member]
Reported in cost of sales [Abstract]
Other Restructuring Costs									2,100,000	2,000,000
Cost of Sales [Member] | Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative [Member]
Reported in cost of sales [Abstract]
Other Restructuring Costs									0	1,500,000
Cost of Sales [Member] | Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member]
Reported in cost of sales [Abstract]
Other Restructuring Costs									$ 2,100,000	$ 500,000