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Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Segment	Sep. 30, 2013
Nature Of Operations [Line Items]
Number of operating segments			2
Net foreign exchange gains/(losses) resulting from foreign currency transactions included in other income	$ 10,000	$ (10,000)	$ (37,000)	$ (26,000)
Pctel Secure [Member]
Nature Of Operations [Line Items]
Royalty receivable as percentage of net sale price			7.00%
Maximum royalty rate			10,000,000
Pctel Secure [Member] \| Maximum [Member]
Nature Of Operations [Line Items]
Maximum royalty rate			$ 10,000,000

Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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