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Note 11 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income from operations	$ 14,351	$ 19,573	$ 31,176	$ 39,021
Operating Segments [Member] | United States Segment [Member]
Income from operations	24,349	27,948	49,438	54,258
Operating Segments [Member] | Europe Segment [Member]
Income from operations	2,261	3,756	6,625	7,977
Operating Segments [Member] | Corporate Unallocated and Japan Segment[Member]
Income from operations	$ (12,259)	$ (12,131)	$ (24,887)	$ (23,214)

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

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