Revenue Recognition: Schedule Of Revenues By Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Sales, net	$ 8,787	$ 11,846	$ 19,689	$ 22,579
Obstetrics
Sales, net	914		2,072
Gynecology/Electrosurgery/Urology
Sales, net	3,690		9,582
Neonatal
Sales, net	1,354		2,937
Blood Pressure Monitoring and Accessories
Sales, net	2,829		5,098
DomesticUsMember
Sales, net	5,513		11,956
DomesticUsMember | Obstetrics
Sales, net	799		1,707
DomesticUsMember | Gynecology/Electrosurgery/Urology
Sales, net	2,021		4,839
DomesticUsMember | Neonatal
Sales, net	975		2,115
DomesticUsMember | Blood Pressure Monitoring and Accessories
Sales, net	1,718		3,295
OutsideUsMember
Sales, net	3,274		7,733
OutsideUsMember | Obstetrics
Sales, net	115		365
OutsideUsMember | Gynecology/Electrosurgery/Urology
Sales, net	1,669		4,743
OutsideUsMember | Neonatal
Sales, net	379		822
OutsideUsMember | Blood Pressure Monitoring and Accessories
Sales, net	$ 1,111		$ 1,803