Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Share-based Compensation - Stock Option Activity (Details)

v3.23.3
Note 12 - Share-based Compensation - Stock Option Activity (Details) - Share-Based Payment Arrangement, Option [Member] - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Balances, shares underlying options outstanding (in shares) 2,782,248  
Balances, weighted average exercise price per share (in dollars per share) $ 4.12  
Balances, aggregate intrinsic value $ 462 $ 17
Granted, shares underlying options outstanding (in shares) 972,515  
Granted, weighted average exercise price per share (in dollars per share) $ 2.59  
Expired/cancelled, shares underlying options outstanding (in shares) (47,500)  
Expired/cancelled, weighted average exercise price per share (in dollars per share) $ 7.35  
Forfeited, shares underlying options outstanding (in shares) (8,750)  
Forfeited, weighted average exercise price per share (in dollars per share) $ 10.04  
Balances, shares underlying options outstanding (in shares) 3,698,513  
Balances, weighted average exercise price per share (in dollars per share) $ 3.66