Note 22 - Segment and Geographic Information - Geographic Data (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues	$ 17,121	$ 23,465	$ 48,517	$ 31,937
UNITED STATES
Revenues	14,816	22,550	44,168	29,299
Europe [Member]
Revenues	$ 2,305	$ 915	$ 4,349	$ 2,638

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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