Note 3 - Business Combination - Intangible Assets (Details) - Old Catheter [Member] $ in Thousands	Jun. 30, 2023 USD ($)
Estimated fair value	$ 28,361
Developed Technology Rights [Member] \| VIVO [Member]
Estimated fair value	$ 8,244
Estimated useful life (Year)	15 years
Developed Technology Rights [Member] \| LockeT [Member]
Estimated fair value	$ 18,770
Estimated useful life (Year)	14 years
Customer Relationships [Member]
Estimated fair value	$ 62
Estimated useful life (Year)	6 years
Trademarks [Member] \| VIVO [Member]
Estimated fair value	$ 876
Estimated useful life (Year)	9 years
Trademarks [Member] \| LockeT [Member]
Estimated fair value	$ 409
Estimated useful life (Year)	9 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481283/985-20-50-2

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration