Note 3 - Acquisition - Proforma Information (Details) - Ambrell [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net revenues	$ 18,896	$ 15,737	$ 37,688	$ 28,767
Net earnings (loss)	$ 1,936	$ (3)	$ 3,841	$ (409)
Diluted earnings (loss) per share (in dollars per share)	$ 0.19	$ 0	$ 0.37	$ (0.04)

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.

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=79982066&loc=d3e1392-128463

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