Note 13 - Segment Reporting - Revenue From Operations by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue	$ 121,721	$ 125,342	$ 372,791	$ 364,516
Operating Segments [Member]
Revenue	121,721	125,342	372,791	364,516
Operating Segments [Member] \| United States Segment [Member]
Revenue	98,970	100,127	295,121	286,524
Operating Segments [Member] \| Europe Segment [Member]
Revenue	21,464	22,155	69,441	68,259
Operating Segments [Member] \| Japan Segment [Member]
Revenue	$ 1,287	$ 3,060	$ 8,229	$ 9,733

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details