Revenue Recognition: Schedule Of Revenues By Product Category (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Sales, net	$ 12,323	$ 10,964
Obstetrics
Sales, net	1,049
Gynecology/Electrosurgery/Urology
Sales, net	5,102
Neonatal
Sales, net	1,873
Blood Pressure Monitoring and Accessories
Sales, net	4,299
DomesticUsMember
Sales, net	7,984
DomesticUsMember \| Obstetrics
Sales, net	923
DomesticUsMember \| Gynecology/Electrosurgery/Urology
Sales, net	2,580
DomesticUsMember \| Neonatal
Sales, net	1,582
DomesticUsMember \| Blood Pressure Monitoring and Accessories
Sales, net	2,899
OutsideUsMember
Sales, net	4,339
OutsideUsMember \| Obstetrics
Sales, net	126
OutsideUsMember \| Gynecology/Electrosurgery/Urology
Sales, net	2,522
OutsideUsMember \| Neonatal
Sales, net	291
OutsideUsMember \| Blood Pressure Monitoring and Accessories
Sales, net	$ 1,400

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Section S99
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+ Details