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Note 16 - Segment Information (Details Textual) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 USD ($) | [1] | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) | Jun. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | [2] | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Number of Reportable Segments |  |  |  |  |  |  |  |  | 2 |  |
Revenues | $ 203,306 | $ 178,631 | $ 164,326 | $ 158,744 | $ 190,978 | $ 164,500 | $ 158,832 | $ 156,341 | $ 705,007 | $ 670,651 | $ 724,240
Non Asset Operations [Member] | Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 3,100 | $ 2,600 | $ 2,400
[1] | Includes $40.1m one-time benefit related to the Tax Cuts and Jobs Act.
[2] | Adjusted from 10-Q as filed due to implementation of ASU 2016-09.

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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