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Note 17 - Subsequent Events (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Apr. 03, 2024
Mar. 31, 2024
Mar. 28, 2024
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]   us-gaap:SecuredOvernightFinancingRateSofrMember  
Subsequent Event [Member] | KARL STORZ [Member]      
Debt Instrument, Exclusivity Period Extended, Funding Per Week $ 1    
Debt Instrument, Merger Approved, Option Amount $ 5    
Debt Instrument, Basis Spread on Variable Rate 10.00%    
Subsequent Event [Member] | KARL STORZ [Member] | Maximum [Member]      
Debt Instrument, Face Amount $ 20    
KARL STORZ [Member] | Asensus Surgical [Member]      
Business Acquisition, Percentage of Voting Interests Acquired     100.00%
Business Acquisition, Share Price     $ 0.35