Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Share-based Compensation (Details Textual)

v3.23.1
Note 12 - Share-based Compensation (Details Textual) - shares
May 18, 2022
Mar. 31, 2023
Dec. 03, 2021
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   5,700,000  
Deferred Share Units [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   213,905  
Restricted Stock Units (RSUs) [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   12,867  
The 2019 Omnibus Incentive Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) 4,000,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   2,773,498  
The 2019 Omnibus Incentive Plan [Member] | Employee and Non-employee Stock Options [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 10 years    
The 2019 Omnibus Incentive Plan [Member] | Employee and Non-employee Stock Options [Member] | Minimum [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 1 year    
The 2019 Omnibus Incentive Plan [Member] | Employee and Non-employee Stock Options [Member] | Maximum [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 4 years    
The 2019 Omnibus Incentive Plan [Member] | Nonemployee Stock Options [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 5 years    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 1 year    
The 2019 Omnibus Incentive Plan [Member] | Deferred Share Units [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   196,572  
The 2019 Omnibus Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   12,867  
The 2021 Employment Inducement Incentive Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)     1,000,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   465,000  
Stock Option Prior Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   462,910  
The 2012 DSU Plan [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   17,333