Quarterly report [Sections 13 or 15(d)]

Note 11 - Net Loss Per Share - Summary of Significant Accounting Policies - Net Loss Per Common Share (Details)

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Note 11 - Net Loss Per Share - Summary of Significant Accounting Policies - Net Loss Per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Net loss $ (8,620) $ (7,699) $ (7,707) $ (6,274) $ (5,119) $ (5,151) $ (24,026) $ (16,544)
Weighted average shares outstanding—basic and diluted (in shares) 49,630,119     42,751,577     45,168,749 39,604,179
Basic and diluted net loss per share (in dollars per share) $ (0.17)     $ (0.15)     $ (0.53) $ (0.42)