Note 10 - Revenue and Geographic Information - Revenues (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue	$ 38,753	$ 41,465	$ 121,197	$ 123,691
OA Pain Management [member]
Revenue	24,428	24,888	75,404	76,855
Joint Preservation and Restoration [Member]
Revenue	11,950	13,470	39,345	39,583
Non-Orthopedic [Member]
Revenue	$ 2,375	$ 3,107	$ 6,448	$ 7,253

Amount, excluding 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.

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+ Details