Quarterly report [Sections 13 or 15(d)]

Note 7 - Stockholders' Equity - Summary of Stock Option Activity (Details)

v3.26.1
Note 7 - Stockholders' Equity - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Outstanding, options (in shares) 256,474  
Outstanding, weighted average exercise price (in dollars per share) $ 9.74  
Outstanding, remaining term (Year) 8 years 4 months 24 days 8 years 7 months 6 days
Outstanding, aggregate intrinsic value $ 0 $ 0
Outstanding, options (in shares) 256,474 256,474
Outstanding, weighted average exercise price (in dollars per share) $ 9.74 $ 9.74
Expected to vest, options (in shares) 81,950  
Expected to vest, weighted average exercise price (in dollars per share) $ 6.46  
Expected to vest, remaining term (Year) 8 years 4 months 24 days  
Expected to vest, aggregate intrinsic value $ 0  
Exercisable, options (in shares) 174,524  
Exercisable, weighted average exercise price (in dollars per share) $ 11.27  
Exercisable, remaining term (Year) 8 years 4 months 24 days  
Exercisable, aggregate intrinsic value $ 0