Note 11 - Revenues By Product Category And Region: Schedule Of Global Revenues By Product Category (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Sales, net (notes 1, 3, 9 and 11)	$ 12,333	$ 12,505	$ 12,866	$ 12,520	$ 13,575	$ 12,955	$ 13,428	$ 12,323	$ 12,914	$ 12,572	$ 12,604	$ 10,964	$ 50,224	$ 52,281	$ 49,054
Global
Sales, net (notes 1, 3, 9 and 11)													50,224	52,281	49,054
Global | Obstetrics
Sales, net (notes 1, 3, 9 and 11)													4,592	4,661	4,675
Global | Gynecology/Electrosurgery/Urology
Sales, net (notes 1, 3, 9 and 11)													22,300	21,841	21,973
Global | Neonatal
Sales, net (notes 1, 3, 9 and 11)													6,863	7,567	6,691
Global | Blood Pressure Monitoring and Accessories
Sales, net (notes 1, 3, 9 and 11)													$ 16,469	$ 18,212	$ 15,715