Acquisitions And Divestitures (Details) (USD $)	12 Months Ended				1 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 MEI Conlux Holdings [Member]	Dec. 31, 2010 Money Controls Limited [Member]	Feb. 28, 2010 Merrimac Industries Inc. [Member]	Dec. 31, 2010 WTA Industries [Member]	Jul. 31, 2011 WTA Industries [Member]	Dec. 31, 2009 Wireless Monitoring Systems [Member]	Jul. 31, 2010 Wireless Monitoring Systems [Member]
Business Acquisition [Line Items]
Sales reported by acquired entity				$ 400,000,000	$ 64,000,000	$ 32,000,000	$ 21,000,000
Business acquisition, purchase price			144,000,000	820,000,000	90,000,000	51,000,000		37,000,000
Business acquisition, cash acquired					3,000,000
Business acquisition, debt assumed			3,000,000			3,000,000		1,000,000
Aggregate purchase price of current assets					24,000,000	23,000,000		8,000,000
Aggregate purchase price of property, plant, and equipment					10,000,000	12,000,000		12,000,000
Aggregate purchase price of identified intangible assets					43,000,000	20,000,000		9,000,000
Aggregate purchase price of goodwill					31,000,000	16,000,000		12,000,000
Aggregate purchase price of other long-term assets					6,000,000
Aggregate purchase price of deferred tax asset					4,000,000
Aggregate purchase price of current liabilities					11,000,000	10,000,000		4,000,000
Aggregate purchase price of deferred tax liabilities					13,000,000	10,000,000
Aggregate purchase price of long-term liabilities					1,000,000
Proceeds of divestitures										3,000,000
Net sales	$ 25,544,000	$ 45,498,000	$ 38,506,000						$ 3,000,000