Note 2 - Acquisition (Details) - Supplemental Pro Forma Information (Unaudited) - Sensima [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Note 2 - Acquisition (Details) - Supplemental Pro Forma Information (Unaudited) [Line Items]
Revenue	$ 282,584	$ 238,181
Net income	$ 33,777	$ 20,187
Diluted net income per share (in Dollars per share)	$ 0.85	$ 0.52

No definition available.

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- Definition

The pro forma diluted 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=56956515&loc=d3e1392-128463

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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