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Geographic Consolidation - Additional Information (Detail) (Broadcast Microwave Services [Member], USD $)	3 Months Ended
	Mar. 29, 2014	Mar. 28, 2015
Restructuring Cost and Reserve [Line Items]
Severance and one time termination benefits	$ 0us-gaap_RestructuringCharges
Selling, General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Severance and one time termination benefits		$ 24,000

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References+ Details