Acquisitions (Details) (USD $)	9 Months Ended	12 Months Ended	9 Months Ended					12 Months Ended	9 Months Ended		12 Months Ended
	Jun. 29, 2013	Sep. 29, 2012	Jun. 29, 2013 Ethox Medical [Domain] [Member]	Jun. 30, 2012 Ethox Medical [Domain] [Member]	Jun. 29, 2013 Medical Devices [Member]	Jun. 29, 2013 Aspen [Member]	Jun. 29, 2013 Space And Defense Segment [Member]	Sep. 29, 2012 Space And Defense Segment [Member]	Jun. 29, 2013 Broad Reach [Member] [Member]	Jun. 29, 2013 Components Segment [Member]	Sep. 29, 2012 Components Segment [Member]	Sep. 29, 2012 Protokraft [Member]	Sep. 29, 2012 Tritech [Member]	Sep. 29, 2012 Bradford Engineering [Member]	Sep. 29, 2012 In-Space Propulsion [Member]	Jun. 29, 2013 In-Space Propulsion [Member]
Business Acquisition [Line Items]
Number of acquisitions completed	2	4					1	2		1	2
Business Acquisition Issuance Of Unsecured Notes									$ 8,450,000
Acquisitions of businesses, net of cash acquired						33,911,000			34,550,000			12,500,000	34,267,000	13,173,000	44,845,000
Business Acquisitions, Working Capital Adjustments, Cash Paid													(1,346,000)			650,000
Business Acquisition, Preacquisition Contingency, Amount of Settlement									2,565,000			4,809,000
Business divestiture number of Entities Divested					1
Proceeds from Divestiture of Businesses				5,000,000
Noncash or Part Noncash Divestiture, Amount of Consideration Received			$ 0