Note 10 - Revenue and Geographic Information (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue from Contract with Customer, Excluding Assessed Tax	$ 41,465	$ 40,264	$ 123,691	$ 116,614
OA Pain Management [member]
Revenue from Contract with Customer, Excluding Assessed Tax	24,888	24,476	76,855	69,533
Veterinary [Member] | OA Pain Management [member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,600	$ 1,200	$ 3,200	$ 4,600
DePuy Synthes Mitek Sports Medicine [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	44.00%	45.00%	45.00%	43.00%