Note 6 - Fair Value - Quantitative Information about Inputs and Valuation Methodologies Used for Fair Value Measurements Classification (Details)	Dec. 31, 2023	Dec. 31, 2022
Measurement Input, Price Volatility [Member] | Senhance Surgical Robotic System Acquisition[Member] | Fair Value, Inputs, Level 3 [Member]
Contingent consideration, measurement input	0.35	0.45
Measurement Input, Discount Rate [Member] | Senhance Surgical Robotic System Acquisition[Member] | Fair Value, Inputs, Level 3 [Member]
Contingent consideration, measurement input	0.10	0.165
Measurement Input, Currency Exchange Rate [Member] | Senhance Surgical Robotic System Acquisition[Member] | Fair Value, Inputs, Level 3 [Member]
Contingent consideration, measurement input	1.1	1.07
Warrant [Member] | Measurement Input, Expected Dividend Rate [Member]
Measurement input	0
Warrant [Member] | Measurement Input, Price Volatility [Member]
Measurement input	1.17
Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
Measurement input	0.038
Warrant [Member] | Measurement Input, Expected Term [Member]
Measurement input	4.6