Annual report pursuant to Section 13 and 15(d)

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

v3.22.0.1
Note 12 - Share-based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Granted (in shares) 638,008    
Exercised (in shares) (40,000) (14,283)  
Share-based Payment Arrangement, Option [Member]      
Balance (in shares) 1,389,564 1,220,359  
Balance, weighted average exercise price (in dollars per share) $ 5.24 $ 5.33  
Balance, aggregate intrinsic value $ 169 $ 7,109 $ 678
Granted (in shares) 638,008 302,332  
Granted, weighted average exercise price (in dollars per share) $ 5.18 $ 4.73  
Exercised (in shares) (40,000) (14,283)  
Exercised, weighted average exercise price (in dollars per share) $ 6.10 $ 3.21  
Expired/cancelled (in shares) (20,972) (78,147)  
Expired / cancelled, weighted average exercise price (in dollars per share) $ 12.65 $ 5.29  
Forfeited (in shares) (70,000) (40,697)  
Forfeited, weighted average exercise price (in dollars per share) $ 4.24 $ 4.86  
Balance (in shares) 1,896,600 1,389,564  
Balance, weighted average exercise price (in dollars per share) $ 5.25 $ 5.24