Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Share-based Compensation (Details Textual)

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Note 12 - Share-based Compensation (Details Textual) - shares
May 18, 2022
Jun. 30, 2024
Dec. 03, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   4,859,271  
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   8,367,551  
Deferred Share Units [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   284,886  
Restricted Stock Units (RSUs) [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   11,828  
The 2019 Omnibus Incentive Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) 7,000,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   3,700,528  
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   3,014,066  
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)   267,553  
The 2019 Omnibus Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   11,828  
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)   735,833  
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   197,500  
Stock Option Prior Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   422,910  
The 2012 DSU Plan [Member]      
Common Stock, Capital Shares Reserved for Future Issuance (in shares)   17,333