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Note 18 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income from operations | $ 88,898 | $ 72,226 | $ 61,767
Operating Segments [Member] | United States Segment [Member] |  |  |
Income from operations | 120,641 | 103,136 | 89,308
Operating Segments [Member] | Europe Segment [Member] |  |  |
Income from operations | 16,804 | 12,846 | 11,657
Corporate and Reconciling Items [Member] | Corporate Unallocated and Japan Segment[Member] |  |  |
Income from operations | $ (48,547) | $ (43,756) | $ (39,198)

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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- Details
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