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Note 11 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income from operations	$ 17,669	$ 21,273	$ 48,845	$ 60,294
Operating Segments [Member] | United States Segment [Member]
Income from operations	25,164	28,109	74,602	82,367
Operating Segments [Member] | Europe Segment [Member]
Income from operations	3,764	4,045	10,389	12,022
Operating Segments [Member] | Corporate Unallocated and Japan Segment[Member]
Income from operations	$ (11,259)	$ (10,881)	$ (36,146)	$ (34,095)

X

- Definition

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

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