v3.26.1
Note 2 - Significant Accounting Policies (Details Textual)
$ in Thousands
3 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Number of Operating Segments 1  
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation $ (8,878) $ (11,336)
Number of Reportable Segments 1  
Building [Member]    
Property, Plant and Equipment, Useful Life (Year) 39 years  
Building Improvements [Member]    
Property, Plant and Equipment, Useful Life (Year) 10 years  
Share-Based Payment Arrangement, Option [Member] | Minimum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 1 year  
Share-Based Payment Arrangement, Option [Member] | Maximum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 4 years