Acquisitions - Pro Forma Financial Information for Nexgen (Detail) - Nexgen Wireless, Inc. [Member] - Pro Forma [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
REVENUES	$ 27,625	$ 31,194	$ 56,909	$ 62,353
NET INCOME	$ 346	$ 619	$ 362	$ 1,784
NET INCOME PER SHARE	$ 0.02	$ 0.03	$ 0.02	$ 0.10

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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