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Note 11 - Stock-based Compensation (Details Textual) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Jun. 06, 2023
Feb. 28, 2024
Mar. 31, 2024
Performance Restricted Stock Unit [Member] | Granted in 2023 [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Operation Targets Achieved   50.00%  
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Operation, Earned   50.00%  
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period     3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Award Forfeited   50.00%  
Share-Based Payment Arrangement, Option [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 2.4
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     2 years 3 months 18 days
Restricted Stock Units (RSUs) [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 6.8
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 9 months 18 days
Asensus Surgical, Inc. Amended and Restated Incentive Compensation Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 22,000,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)     54,072,307