Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended					12 Months Ended
	Oct. 01, 2013	Dec. 28, 2013	Dec. 31, 2011	Dec. 29, 2012	Oct. 01, 2013 Semiconductor Equipment [Member]	Oct. 01, 2013 Microwave Communications [Member]	Dec. 28, 2013 Minimum [Member] Buildings [Member]	Dec. 28, 2013 Minimum [Member] Building Improvements [Member]	Dec. 28, 2013 Minimum [Member] Machinery, Equipment and Software [Member]	Dec. 28, 2013 Maximum [Member] Buildings [Member]	Dec. 28, 2013 Maximum [Member] Building Improvements [Member]	Dec. 28, 2013 Maximum [Member] Machinery, Equipment and Software [Member]	Dec. 28, 2013 Reserve for Excess and Obsolete Inventories [Member]	Dec. 29, 2012 Reserve for Excess and Obsolete Inventories [Member]	Dec. 31, 2011 Reserve for Excess and Obsolete Inventories [Member]
Number of common stock shares excluded from computation of diluted income per share			1,956,000
Net of allowance for doubtful accounts		$ 600,000		$ 300,000
Charges to cost of sales													8,100,000	8,900,000	5,800,000
Property, plant and equipment estimated useful lives							30 years	5 years	3 years	40 years	15 years	10 years
Goodwill impairment	0
Percent of fair value exceeding carrying value					31.00%	11.00%
Product warrant period		12- to 36-months
Largest amount of tax benefit likely of being realize upon settlement		50.00%
Minority portion of purchase price payable upon customer acceptance		20.00%
Majority portion of revenue recognized upon shipment and transfer of title		80.00%
Deferred revenue		7,400,000		3,600,000
Deferred profit		6,066,000		2,139,000
Accumulated other comprehensive income		$ 6,651,000		$ 1,783,000