Quarterly report [Sections 13 or 15(d)]

Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities Excluded From Computation of Earnings Per Share (Details)

v3.25.3
Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities Excluded From Computation of Earnings Per Share (Details) - shares
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Total potential dilutive securities (in shares) [1] 340,636 135,588 284,021 90,294
Restricted Stock Units (RSUs) [Member]        
Total potential dilutive securities (in shares) [1] 158,250 28,202 101,635 34,030
Warrant [Member]        
Total potential dilutive securities (in shares) [1] 182,386 107,386 182,386 56,264
[1] Securities are presented on a weighted average outstanding calculation as required if the securities were dilutive and adjusted to give effect to the November 4, 2024 and August 4, 2025 reverse stock splits.