Note 11 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Income from operations	$ 3,749	$ 7,890
Operating Segments [Member] \| United States Segment [Member]
Income from operations	20,481	22,524
Operating Segments [Member] \| Europe Segment [Member]
Income from operations	(2,483)	(1,679)
Operating Segments [Member] \| Corporate Unallocated and Japan Segment[Member]
Income from operations	$ (14,249)	$ (12,955)

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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