Quarterly report pursuant to Section 13 or 15(d)

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

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Note 12 - Share-based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Balances, aggregate intrinsic value $ 732  
Balances, shares underlying options outstanding (in shares) 4,259,763  
Balances, weighted average exercise price per share (in dollars per share) $ 3.52  
Share-Based Payment Arrangement, Option [Member]    
Balances, shares underlying options outstanding (in shares) 3,871,013  
Balances, weighted average exercise price per share (in dollars per share) $ 3.61  
Balances, aggregate intrinsic value   $ 832
Granted, shares underlying options outstanding (in shares) 435,000  
Granted, weighted average exercise price per share (in dollars per share) $ 2.76  
Expired/cancelled, shares underlying options outstanding (in shares) 0  
Expired/cancelled, weighted average exercise price per share (in dollars per share) $ 0  
Forfeited, shares underlying options outstanding (in shares) (46,250)  
Forfeited, weighted average exercise price per share (in dollars per share) $ 2.97