Schedule of Pro Forma Results of Operations (Detail) (Acquisition of ATT Systems, USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Acquisition of ATT Systems
Business Acquisition [Line Items]
Pro forma revenue	$ 127,618	$ 118,508
Pro forma net income	$ 14,564	$ 5,834
Pro forma basic net income per share	$ 0.90	$ 0.37
Pro forma diluted net income per share	$ 0.88	$ 0.36

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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.

+ References

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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