Note 11 - Commitments (Details Textual) - USD ($) $ in Thousands |
Sep. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Purchase Obligation, Due in Next Twelve Months | $ 25,657 | $ 14,394 |
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
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