Revenue Recognition: Schedule Of Revenues By Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Sales, net	$ 12,955	$ 12,572	$ 38,707	$ 36,140
Obstetrics
Sales, net	1,268		3,524
Gynecology/Electrosurgery/Urology
Sales, net	5,705		16,230
Neonatal
Sales, net	1,826		5,612
Blood Pressure Monitoring and Accessories
Sales, net	4,156		13,341
DomesticUsMember
Sales, net	8,615		24,429
DomesticUsMember | Obstetrics
Sales, net	1,115		3,045
DomesticUsMember | Gynecology/Electrosurgery/Urology
Sales, net	2,724		7,699
DomesticUsMember | Neonatal
Sales, net	1,514		4,610
DomesticUsMember | Blood Pressure Monitoring and Accessories
Sales, net	3,262		9,075
OutsideUsMember
Sales, net	4,340		14,278
OutsideUsMember | Obstetrics
Sales, net	153		479
OutsideUsMember | Gynecology/Electrosurgery/Urology
Sales, net	2,981		8,531
OutsideUsMember | Neonatal
Sales, net	312		1,002
OutsideUsMember | Blood Pressure Monitoring and Accessories
Sales, net	$ 894		$ 4,266