Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Stock-based Compensation (Details Textual)

v3.23.1
Note 12 - Stock-based Compensation (Details Textual)
$ / shares in Units, $ in Millions
3 Months Ended
Jun. 30, 2021
shares
Apr. 30, 2023
USD ($)
$ / shares
shares
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount   $ 3.9
Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price (in dollars per share) | $ / shares   $ 2.59
Share-Based Payment Arrangement, Option [Member]    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   2 years 1 month 6 days
Restricted Stock Units (RSUs) [Member]    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount   $ 64.5
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   2 years 8 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Right To Receive Shares   1
Restricted Stock Units (RSUs) [Member] | Minimum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)   3 years
Restricted Stock Units (RSUs) [Member] | Maximum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)   4 years
Market-based Restricted Stock Units (MBRSUs) [Member]    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount   $ 10.8
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   1 year 3 months 18 days
Market-based Restricted Stock Units (MBRSUs) [Member] | Minimum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)   3 years
Market-based Restricted Stock Units (MBRSUs) [Member] | Maximum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)   4 years
The 2020 Omnibus Incentive Plan [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | shares 13,105,902  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Annual Increase, Percentage 5.00%  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) | shares   1,697,713
The 2020 Omnibus Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 4 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 10 years  
The 2020 Omnibus Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Days Following Termination of Employment or Service [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 90 days  
The 2020 Omnibus Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Months Following Optionees Death or Disability [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 12 months